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Trezor firmware

Firmware monorepo for Trezor One, Model T, and Safe devices.

BitcoinHardware walletsNormal
Repository coverage

2667 commits in the local evidence base

Every captured commit receives deterministic security triage and a separate communication-quality score. Security candidates and broader second-pass signals receive full-patch Ollama analysis.

921security candidates311second-pass queue2660AI analyses
322commits · 30 days
549commits · 60 days
1358commits · 180 days
2638commits · 365 days
Backfill bands
Aug 5 → Feb 61298 seen115 candidatesComplete
Feb 6 → Jun 6775 seen58 candidatesComplete
Jun 6 → Jul 6217 seen13 candidatesComplete
Jul 6 → Aug 5360 seen54 candidatesComplete
Commit communication

Does the history explain itself?

Message quality measures whether a commit identifies its scope, purpose, rationale, testing, and supporting references. It does not change the security-severity score.

66/100 average clarity
478Strong · 80–100
1321Adequate · 60–79
863Thin · 40–59
5Opaque · 0–39
Read the scoring rubric →
Developer activity

Who is changing the project?

Public Git author strings; identities are not independently verified.

DeveloperCommitsCandidatesAnalyzedHigh riskMessage avg.
tychovrahe292104292461
Roman Zeyde577181575272
PrisionMike945994273
Andrew Kozlik712470265
obrusvit21376213164
Jakub Janků22919182
Martin Pastyřík23823173
cepetr19682196059
Ioan Bizău23076230059
M1nd3r20772207071
Lukas Bielesch846784067
Martin Milata17446174063
Analysis record

Published AI watches

Last scanned 50 minutes ago

Low 27 AI analysisMessage 93 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(core): digest EIP-1559/EIP-7702 magic without RLP encoding

This commit is a small internal cleanup in Trezor's Ethereum signing code. It changes how two special 'magic' bytes (the transaction type markers for newer Ethereum transaction formats) are fed into the cryptographic hash. Previously the c…

Refactor of cryptographic hashing path for Ethereum transaction signingRemoval of implicit assumption that RLP encodes small integers as single bytesChange affects EIP-1559 and EIP-7702 transaction type markers
2362bc6fby Roman Zeyde+6−32 files
No security note in commit
Informational 15 AI analysisMessage 98 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

test(core): test RLP self-encoding bytestrings

This commit only adds a new unit test to the Trezor firmware codebase. It verifies that very short Ethereum RLP-encoded byte strings and small positive integers encode to themselves, which is a known property of the RLP specification. No p…

41538733by Roman Zeyde+16−01 file
No security note in commit
Informational 18 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

chore(core): remove sha1 from regular FW

This commit removes the SHA-1 hashing function from the regular Trezor firmware. SHA-1 is an old, weak hash algorithm that is no longer considered secure for sensitive uses. The change deletes the code that exposes SHA-1 to apps running on…

Removal of a deprecated cryptographic primitive (SHA-1) from the firmware API surfaceReduction of attack surface and prevention of future misuse of a collision-vulnerable hashNo direct vulnerability patch or memory-safety bug is present in the diff
16d15774by M1nd3r+0−2006 files
No security note in commit
Low 27 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): pass static public key to `noise_xxpsk3_*_init()`

This commit changes how a cryptographic library sets up secure connections. Previously, the code automatically calculated the public key from the private key. Now, the caller must provide the public key directly. This is a code-quality ref…

Cryptographic key handling changed: public key is now supplied rather than derivedPotential reduction of key-mismatch risk if caller provides correct public keyNew null-pointer check added for static_public_key
1b3128a4by Ondřej Vejpustek+20−92 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): change order of parameters

This commit simply reorders the arguments of an internal function called dh() and updates every place that calls it. The actual math and security behavior are unchanged; it is a code cleanup with no security effect.

33a119eeby Ondřej Vejpustek+15−151 file
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): prefix enums

This commit simply renames two groups of internal status labels (called enums) in the Trezor firmware's cryptographic code. The old names like WAITING_FOR_REQUEST1 were shared between two different parts of the code, so the developer gave …

f1c74046by Ondřej Vejpustek+26−222 files
No security note in commit
Low 37 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

fix(crypto): prevent calling `memzero(NULL, ...)`

This commit fixes three places in the Trezor firmware's cryptographic code where a memory-clearing function could be called with a NULL pointer. In practice, passing NULL to memzero is harmless on Trezor's platform (it does nothing), but i…

NULL pointer passed to memory-zeroing helper in cryptographic codeUndefined behavior in C standard library contractDefensive hardening in Noise protocol implementation
0394e934by Ondřej Vejpustek+11−51 file
No security note in commit
Informational 18 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): return remote static key from `noise_xxpsk3_*_handle_*()`

This commit is a code cleanup (refactor) for the cryptographic handshake code used in Trezor devices. It changes how the other party's long-term public key is returned to the caller: instead of storing it inside an internal state structure…

Removal of long-term public key storage from internal handshake stateCaller-supplied output buffer for remote static public key reduces internal secret retentionError-path memzero of returned key material on failure
3ead1aa6by Ondřej Vejpustek+79−423 files
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): rename ProjectProfile to ProjectConfig

This commit is a simple rename from 'ProjectProfile' to 'ProjectConfig' in two Rust source files. It only changes variable names, struct names, and error messages. There is no change to program logic, security behavior, or how data is hand…

581b37bcby cepetr+18−182 files
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): introduce ResolvedBuildArgs

This commit is a straightforward internal code refactor in Trezor's build tooling. It introduces a new ResolvedBuildArgs structure that centralizes default values for command-line build options before they are used. There is no change to u…

c24d1be8by cepetr+99−295 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): make build args tristate

This commit is a straightforward internal refactor of the Trezor firmware build tool's command-line argument handling. It changes many on/off flags from plain booleans to optional booleans so they can explicitly be set to true, false, or l…

271e249aby cepetr+57−561 file
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): introduce build options

This commit is a straightforward internal code reorganization in Trezor's build tooling. It moves build-option definitions from one Rust source file to a new module and adds the ability to load those options from a configuration file. Ther…

75085e2aby cepetr+275−2007 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(xtask): introduce build presets

This commit is a developer tooling change for the Trezor firmware build system. It introduces 'build presets'—named configuration bundles stored in TOML files—so developers can select common build settings with a single command-line flag i…

eefe8f7fby cepetr+397−419 files
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(xtask): upgrade manifest.yaml for tf-tools 0.3.0

This commit is a routine update to a build-system manifest file used by Trezor's internal tooling. It reorganizes and re-labels feature flags (for example, moving options between 'Features', 'Debugging', and 'Signing' groups and simplifyin…

57b28b89by cepetr+86−1351 file
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(core): add tf-tools 0.3.1+ configuration file

This commit adds a single configuration file for a Trezor developer tool (a VS Code extension). It only points the tool to existing folders in the repository and contains no executable code, no secrets, and no changes to firmware behavior.…

e554f618by cepetr+8−01 file
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): rename ResolvedBuild to ResolvedBuildFeatures

This commit is a simple internal code cleanup: it renames a Rust data structure called ResolvedBuild to ResolvedBuildFeatures and updates the places that use it. There are no functional changes, no security fixes, and no changes to how the…

aaa2780bby cepetr+5−52 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

fix(core): fix up clippy warnings in storage.rs

This is a tiny code cleanup commit that replaces two calls to `ptr::null()` with Rust's `unwrap_or_default()` to silence automated Clippy lint warnings. It does not change what value is produced (still a null pointer when no salt is provid…

62354461by cepetr+2−21 file
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): simplify dependencies

This commit is a straightforward internal code cleanup in Trezor's build tooling. It moves a data structure and two helper methods from one Rust source file to another and updates callers accordingly. There is no change to user-facing beha…

6268349fby cepetr+9−193 files
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

docs: add xtask documentation

This commit only adds documentation. It updates the table of contents and adds a new markdown page plus a diagram explaining the project's 'xtask' build helper. No code, build scripts, or firmware logic was changed, so it cannot introduce …

4879dababy cepetr+296−03 files
No security note in commit
Informational 17 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(xtask): introduce project-toml build-options

This commit is a build-system refactoring for Trezor firmware. It moves the mapping of command-line build options to Rust/cargo features out of hard-coded Rust logic and into per-project TOML files. It also adds a small change so debug bui…

Build-option mapping now lives in project.toml files, increasing the attack surface for supply-chain/build-configuration tamperingMakefile change automatically enables debug-link for PYOPT=0 debug buildsValidation added to reject storage_insecure_testing_mode in production builds
d44de007by cepetr+681−40817 files
No security note in commit
Repository ledger

Explore captured commits

Expand any commit for its author, full message, clarity score, changed files, triage signals, analysis, and source link.

Lower-priorityfeat(core/prodtest): use traces instead of errors in `tropic_is_paired()`by Ondřej Vejpustek · 8dcda722 · Jan 23, 2026 · 1 fileMessage 62 · AdequateInformational 18Details
Commit message · Ondřej Vejpustek

feat(core/prodtest): use traces instead of errors in `tropic_is_paired()`

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 18/100

This commit changes how a production-test tool reports problems when checking whether a Tropic secure chip is paired. Previously, the check function itself printed error messages; now it only records diagnostic traces, and the calling commands decide whether to report an error. It also fixes two callers that were passing a dummy/NULL context so they now pass the real command-line interface, meaning their 'pairing required' error messages will actually be shown. This is a code-quality and diagnostics change in a factory/testing tool, not a fix for an exploitable security flaw in end-user firmware.

Lower-priorityfix(templates): use double quotes for backwards compatibility in pythonby PrisionMike · df8b9368 · Jan 23, 2026 · 1 fileMessage 62 · AdequateInformational 15Details
Commit message · PrisionMike

fix(templates): use double quotes for backwards compatibility in python

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
translation-only discount
AI analysis · Informational 15/100

This is a tiny build-tool fix in a code-generation template. It swaps single quotes for double quotes inside a Python f-string so the template works with older Python versions that don't allow single quotes inside f-string braces. There is no runtime security effect on the Trezor firmware itself.

Lower-priorityrefactor(core): fix typo in constant nameby Ondřej Vejpustek · 79d60075 · Jan 23, 2026 · 3 filesMessage 57 · ThinInformational 15Details
Commit message · Ondřej Vejpustek

refactor(core): fix typo in constant name

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit simply renames a constant from TROPIC_MAC_AND_DESTROY_SLOTS_COUNT to TROPIC_MAC_AND_DESTROY_SLOT_COUNT (singular) across three files. The numeric value stays the same (64), and no program behavior changes. It is a typo-fixing refactor with no security relevance.

Lower-priorityrefactor(core/prodtest): prefix global variables in prodtest_tropic.cby Ondřej Vejpustek · f240c2e0 · Jan 23, 2026 · 1 fileMessage 62 · AdequateInformational 15Details
Commit message · Ondřej Vejpustek

refactor(core/prodtest): prefix global variables in prodtest_tropic.c

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit is a simple code cleanup: it renames a few internal variables in a production-test file by adding a 'g_' prefix to indicate they are global variables. No behavior of the code changes, and there is no security fix or vulnerability introduced.

Lower-priorityfeat(core/prodtest): introduce tropic stress testby Ondřej Vejpustek · 98be2441 · Jan 23, 2026 · 5 filesMessage 67 · AdequateInformational 20Details
Commit message · Ondřej Vejpustek

feat(core/prodtest): introduce tropic stress test

67/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Mentions testing or verification! No meaningful explanatory body
AI analysis · Informational 20/100

This commit adds a new factory/production-test command called tropic-stress-test. It is meant for manufacturing diagnostics and repeatedly exercises the Tropic secure chip's session, MAC-and-destroy, and signing functions to make sure the chip does not enter an alarm state. There is no indication this change fixes a security bug or introduces a vulnerability; it is a testing feature.

Lower-priorityrefactor(core/prodtest): make global tropic configuration constantby Ondřej Vejpustek · 2354f038 · Jan 23, 2026 · 1 fileMessage 62 · AdequateInformational 15Details
Commit message · Ondřej Vejpustek

refactor(core/prodtest): make global tropic configuration constant

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit is a minor code cleanup in Trezor's production-test tool. It adds the 'const' keyword to two large configuration tables so the compiler knows they should not be modified at runtime. There is no functional change, no bug fix, and no security vulnerability indicated in the diff or commit message.

Lower-prioritychore(core): add conversion.h for float bit-equivalent conversionsby tychovrahe · ca958d71 · Jan 23, 2026 · 4 filesMessage 62 · AdequateInformational 15Details
Commit message · tychovrahe

chore(core): add conversion.h for float bit-equivalent conversions

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit is a routine code cleanup. It introduces a small helper file that provides a standard, safe way to convert between float numbers and their raw 32-bit representations. It then replaces a few existing hand-written conversions in the battery telemetry code with these helpers. There is no functional change and no security issue.

Lower-priorityfeat(core): add telemetry response in unix.by kopecdav · de571e9e · Jan 23, 2026 · 5 filesMessage 57 · ThinInformational 15Details
Commit message · kopecdav

feat(core): add telemetry response in unix.

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit reorganizes where the device's internal battery/telemetry tracking code lives and adds a fake fixed-response version for the desktop emulator. It does not fix any security bug, introduce a new attack path, or change how real hardware protects data. It is a build/structure-only change.

Lower-priorityfeat(core): add battery_cycle field in the protobuf telemetry message.by kopecdav · 9f391c81 · Jan 23, 2026 · 6 filesMessage 62 · AdequateInformational 15Details
Commit message · kopecdav

feat(core): add battery_cycle field in the protobuf telemetry message.

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit adds a new data field called battery_cycles to the device's telemetry report. It simply reads an existing stored battery-cycle counter and includes it in the telemetry message sent to connected software. There is no indication this change fixes a bug, changes access controls, or introduces a security vulnerability.

Lower-priorityfix(core): remove auxiliary casting in battery increment fetching.by kopecdav · eacf156a · Jan 23, 2026 · 1 fileMessage 62 · AdequateLow 32Details
Commit message · kopecdav

fix(core): remove auxiliary casting in battery increment fetching.

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Low 32/100

This commit changes how a hardware wallet tracks battery wear. It removes a cast that was truncating a fractional cycle counter to a whole number, and adds interrupt locks around several battery-related operations. The practical effect is that small battery-cycle increments are no longer silently discarded, and concurrent access to shared battery data is better protected. There is no direct evidence in the commit that this fixes an exploitable security vulnerability; it appears to be a correctness and robustness fix.

Lower-priorityfeat(python): Update trezorctl telemetry command with battery_cycle field.by kopecdav · 19ff65bf · Jan 23, 2026 · 6 filesMessage 62 · AdequateInformational 15Details
Commit message · kopecdav

feat(python): Update trezorctl telemetry command with battery_cycle field.

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit is a routine feature update to the trezorctl command-line tool and related firmware code. It adds display of a 'battery cycle count' field in telemetry data and changes the internal data type from signed to unsigned integer. There is no indication this change fixes or introduces a security vulnerability.

Lower-priorityfeat(core): Add battery cycles updates into device telemetry.by kopecdav · e64bddf7 · Jan 23, 2026 · 6 filesMessage 62 · AdequateInformational 22Details
Commit message · kopecdav

feat(core): Add battery cycles updates into device telemetry.

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 22/100

This commit adds a new battery-cycle counter to the device's internal telemetry system. It lets the firmware record how much the battery has been used, similar to an odometer on a car. There is no direct evidence in the commit that this fixes a security bug; it appears to be a routine feature addition for device-health monitoring.

Lower-priorityfix(python): send DebugLinkOptigaSetSecMax via debuglinkby tychovrahe · 239605c3 · Jan 23, 2026 · 2 filesMessage 62 · AdequateInformational 20Details
Commit message · tychovrahe

fix(python): send DebugLinkOptigaSetSecMax via debuglink

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 20/100

This is a small bugfix in Trezor's Python developer tools. A command that resets an internal hardware counter (Optiga security event counter) was accidentally being sent over the normal device connection instead of the special debug-only connection. The patch corrects it to use the debug connection. It does not appear to introduce a security vulnerability; rather it fixes a tooling mistake so the debug command works as intended.

Security candidatefeat(tron): Unblind Shasta USDT transferby PrisionMike · d44d5600 · Jan 22, 2026 · 9 filesMessage 80 · StrongLow 27Details
Commit message · PrisionMike

feat(tron): Unblind Shasta USDT transfer

- Hardcoded USDT address
- Contract parsing logic identical to Ethereum
- Imports from app/ethereum.
- Some TODOs added for subsequent feats.

[no changelog]

80/100 · StrongMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context
Why it was queued
cryptography-sensitive pathsigning or wallet path
AI analysis · Low 27/100

This commit adds support for showing clear, human-readable details when signing a Shasta testnet USDT token transfer on the Tron blockchain. Previously, such transactions were displayed as opaque smart-contract data. The change borrows parsing logic from the Ethereum app and hardcodes one testnet token address. It is a feature addition, not a fix for an active vulnerability, though it reduces the chance a user accidentally approves a misleading token transaction.

Lower-priorityfix(core): fix always active power management errors in emulatorby tychovrahe · 04691ffc · Jan 20, 2026 · 1 fileMessage 62 · AdequateInformational 15Details
Commit message · tychovrahe

fix(core): fix always active power management errors in emulator

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This is a tiny emulator-only fix that fills in two missing status fields (battery and temperature sensor connected) in a fake power-management report used only on the Unix emulator build. It has no security relevance for real Trezor hardware or user funds.

Lower-prioritydocs: new single commit Hello Worldby Thalarion · cc6e4d8a · Jan 19, 2026 · 3 filesMessage 57 · ThinInformational 15Details
Commit message · Thalarion

docs: new single commit Hello World

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
documentation-only discount
AI analysis · Informational 15/100

This commit only updates documentation. It renames a link, adds a note about Python style checkers, updates a tutorial's example code to include a standard Python import, and changes two example commit links. There is no change to the actual Trezor firmware, software, or build process.

Lower-prioritydocs: updated info about updating fixtures in Hello Worldby Thalarion · d00729b1 · Jan 19, 2026 · 2 filesMessage 62 · AdequateInformational 15Details
Commit message · Thalarion

docs: updated info about updating fixtures in Hello World

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
documentation-only discount
AI analysis · Informational 15/100

This is a documentation-only edit. It fixes two typos ('dtto' to 'ditto', 'For some Python code' to 'For existing Python code') and updates the developer 'Hello World' guide to describe a newer workflow for updating UI test fixtures. No source code, build scripts, or device firmware were changed.

Lower-priorityfix(core/prodtest): Prevent deadlock between secrets-init and tropic-pair.by Andrew Kozlik · c9b2230f · Jan 19, 2026 · 2 filesMessage 62 · AdequateLow 31Details
Commit message · Andrew Kozlik

fix(core/prodtest): Prevent deadlock between secrets-init and tropic-pair.

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Low 31/100

This change fixes a deadlock in Trezor's production-test firmware. The pairing process for a Tropic security chip now retrieves internal secrets before writing anything to flash memory. Previously, it could write the chip's public key to flash first, then call a routine that waits for another initialization step (secrets-init), causing both operations to get stuck waiting for each other. The fix simply reorders the steps so secrets are loaded first. This is a reliability bug in a factory tool, not a user-exploitable security vulnerability in the consumer wallet firmware.

Lower-priorityfeat(python): add command for reading out telemetry databy tychovrahe · 04ec4b25 · Jan 19, 2026 · 3 filesMessage 62 · AdequateInformational 15Details
Commit message · tychovrahe

feat(python): add command for reading out telemetry data

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit adds a new command-line tool feature that lets users read non-sensitive telemetry data (like device temperature and battery status) from a Trezor hardware wallet. It is a straightforward read-only feature addition with no apparent security implications.

Lower-priorityfix(core): update battery temp in telemetry only if NTC is connectedby tychovrahe · 3a134af4 · Jan 19, 2026 · 1 fileMessage 42 · ThinInformational 16Details
Commit message · tychovrahe

fix(core): update battery temp in telemetry only if NTC is connected

[no changelog]

42/100 · ThinMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body! Contains work-in-progress language
AI analysis · Informational 16/100

This is a small firmware fix for the Trezor hardware wallet's battery monitoring. It stops the device from reporting a battery temperature to internal telemetry when the temperature sensor (NTC) is physically disconnected. Without the fix, telemetry could record an invalid or misleading temperature value. There is no direct security exploit here; it is a data-quality and robustness improvement.

Lower-prioritychore(core): add syscall for reading telemetry data from appby tychovrahe · d269a542 · Jan 19, 2026 · 5 filesMessage 62 · AdequateInformational 21Details
Commit message · tychovrahe

chore(core): add syscall for reading telemetry data from app

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 21/100

This commit adds a new kernel syscall (a secure gateway) that lets applications read a telemetry data structure from the kernel. The syscall is guarded by a compile-time flag (USE_TELEMETRY) and uses the existing verifier pattern to check that the app has write access to the destination buffer before copying data. There is no direct evidence in the commit of a security vulnerability; it appears to be a routine addition of a read-only information channel.

Lower-priorityfeat(core): add telemetry logging of battery errorsby tychovrahe · dddef125 · Jan 19, 2026 · 8 filesMessage 62 · AdequateInformational 21Details
Commit message · tychovrahe

feat(core): add telemetry logging of battery errors

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 21/100

This commit adds a new telemetry feature that records when the hardware wallet's battery subsystem reports problems, such as the battery being disconnected, temperature jumps, or charging being limited. It also exposes a new secure-monitor call so other parts of the firmware can report these errors. The change is a feature addition, not a fix for a known vulnerability, and the commit message does not claim any security relevance.

Security candidatefeat(core): allow reading out of telemetry databy tychovrahe · fc47c936 · Jan 19, 2026 · 9 filesMessage 57 · ThinInformational 22Details
Commit message · tychovrahe

feat(core): allow reading out of telemetry data

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
boot or update path
AI analysis · Informational 22/100

This commit adds a new read-only feature that lets the host computer ask a Trezor device for internal telemetry records: minimum/maximum temperature and battery error counts. It is a feature addition, not a fix. There is no direct evidence in the commit that this introduces a security vulnerability, but it does expose previously internal device data over the USB/Protobuf interface. The security relevance depends on whether the new TelemetryGet message is protected by an existing session/access policy or can be requested by any connected host.

Security candidatechore(core): add messages for reading out telemetry databy tychovrahe · 1143f5e0 · Jan 19, 2026 · 14 filesMessage 62 · AdequateInformational 19Details
Commit message · tychovrahe

chore(core): add messages for reading out telemetry data

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
boot or update pathauthentication path
AI analysis · Informational 19/100

This commit only adds new message definitions for reading out device telemetry (battery temperature extremes and battery error flags). It does not include any firmware logic that actually collects or responds to these messages, so it cannot by itself be used to attack a device. It is essentially plumbing for a future feature.

Lower-prioritychore(python): re-introduce sleep when starting Tropic emulatorby Roman Zeyde · 9e1f7077 · Jan 19, 2026 · 1 fileMessage 93 · StrongInformational 15Details
Commit message · Roman Zeyde

chore(python): re-introduce sleep when starting Tropic emulator

It seems that even if the model is listening for connections it sometimes needs up to 2 seconds more before it actually correctly processes requests.

See #6128.

[no changelog]

93/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context✓ Links an issue, advisory, or supporting reference
AI analysis · Informational 15/100

This is a small developer-only change that adds a 2-second wait when starting a Tropic emulator used in Trezor's Python test tooling. It fixes a timing/race condition where the emulator appears ready to accept connections but still needs a moment before it can actually handle requests. There is no security issue here.