If you are an affected user, do not dispose of your COLDCARD device. "I'm hearing a potential issue with some Coldcard wallets being drained," Kevin Loaec of the Bitcoin security firm Wizard Sardine posted on X. "There is no need to panic, someone loaded a bad seed into a COLDCARD and/or leaked their seed," Rodolfo Novak, founder of COLDCARD manufacturer Coinkite, posted on X. Anyone with some compute is now able to recreate a COLDCARD wallet's seed. Complicating incentives to review COLDCARD code further was Novak's rather adversarial approach to competitors.