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Informational 14 Bitcoin

chore(common): remove `RecoveryDevice.backup_method` protobuf default

TZfb9ee5e4 View source ↗
Public commit record

What the developer wrote

Authored by Roman Zeyde

77/100 · Adequate
chore(common): remove `RecoveryDevice.backup_method` protobuf default

The user will be prompted to choose the method if it's unset on T3W1.

[no changelog]
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body
The short version

What changed, and why it matters

This commit removes a default value for the backup_method setting used during wallet recovery on Trezor devices. Previously, if a recovery app did not explicitly choose a backup method, the device would default to 'Display' (showing shares on screen). After this change, the device will ask the user to choose instead. This is a small user-experience and behavior change, not a fix for a known security vulnerability.

Recommended action

No immediate action required. Treat as a routine behavioral change. If reviewing for security, verify that the T3W1 recovery flow correctly handles the unset backup_method case and prompts the user securely, but that logic is not present in this commit.

Security signals we found

01

Removal of a protobuf field default value

02

Change may affect recovery flow user prompting on T3W1

03

No explicit security claim in commit message or diff

Risk score

Why this scored 14/100

Our methodology →
Potential impact 2/30
Exploitability 2/25
Stealth signal 2/15
Affected reach 3/15
Confidence 3/10
Evidence quality 2/5
Human-validated context

Community notes

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The AI analysis stands alone for now. Submit a note if you can add evidence or important context.

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