03.08.2026 06:50
Coldcard Losses Near $90M as Attackers Start Cracking Passphrases
The Coldcard entropy exploit has grown from a suspicious $38 million sweep into what researchers now call the largest self-custody breach on record.
#Vulnerabilities
Aug52026
Albany Bitcoin — Ad-Hoc Self Custody Meetup
Clifton Park, NY
Please join Albany Bitcoiners on Wednesday, August 5 for an ad-hoc meetup to discuss the recent developments regarding the Coldcard security issues.
Show moreAug42026
Emergency ColdCard Update @ PubKey DC
Washington, DC
On Tuesday, August 4th, Bitcoin District is hosting an update and open discussion with local experts on the ongoing Coldcard issue.
Show more31.07.2026 01:36
Coldcard Issues Mk3 Security Warning as Experts Probe $38M Bitcoin Sweep
Coinkite warns Coldcard Mk3 users to migrate funds over a seed generation flaw, as experts investigate a suspicious $38M Bitcoin sweep tied to weak RNG entropy.