https://time-friend.com/en/tags/seed-phrase/Recent content in Seed Phrase on Time FriendHugoen-USWed, 02 Sep 2026 13:30:14 +0400https://time-friend.com/en/archive/bip39-passphrase-coldcard-entropy-failure/Sat, 01 Aug 2026 10:00:00 +0000https://time-friend.com/en/archive/bip39-passphrase-coldcard-entropy-failure/<p>Security incidents have kept coming all year, and COLDCARD was just the latest.</p> <p>In late July, a hardware wallet firmware bug: during seed generation, the device was supposed to draw on its hardware true random number generator, but in certain cases it silently fell back to a weak software PRNG. The seeds it produced carried only a few dozen bits of entropy, attackers could derive the private keys, and tens of millions of dollars walked away in 41 minutes.</p>