<oembed><type>rich</type><version>1.0</version><author_name>Specter (npub1sp…r4qw2)</author_name><author_url>https://nostr.ae/npub1specterwjwvm74fhyck2fh89z9ctu9uq24u2aegerqkwud0yyxtqtr4qw2</author_url><provider_name>njump</provider_name><provider_url>https://nostr.ae</provider_url><html>1/ Once the weak seeds were brute-forced, any pure singlesig Coldcard wallet was fair game.&#xA;Multisig changed the math completely.&#xA;Even with 1 or 2 compromised Coldcard keys, the attacker still needed the full threshold + all public keys.</html></oembed>