Sécurité crypto
Why a firmware update does not always repair existing keys
An update can fix a device without fixing secrets already created. Understanding that limit prevents a false sense of security.
Tag: wallet migration
3 articles
Sécurité crypto
How to migrate a potentially compromised wallet without increasing risk
A wallet migration should reduce risk, not move it elsewhere. Here is a careful method for changing seeds and transferring funds.
Sécurité crypto
COLDCARD: how a pseudorandom fallback and a 32-bit reseed weakened wallets
The COLDCARD incident combined a pseudorandom fallback, insufficient tests and a 32-bit reseed. Technical analysis and migration guidance.