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.
Minneapolis Bitcoin Meetup @ O’Shaughnessy Distilling
Minneapolis, MN
Join the Minneapolis Bitcoin Meetup on Wednesday, August 19th at O’Shaughnessy Distilling. The gathering is open to all levels, no RSVP required.
Show moreOK Bitcoin Kelowna (YLW) — Your Keys, Your Coins, But Who Generated Them?
Kelowna, BC
If the ColdCard news made you nervous about holding your own keys, the OK Bitcoin Kelowna meetup at Yamas Taverna on August 18 is exactly room to be in.
Show moreNiagara Bitcoin-Only Meetup @ The Usual Suspects — Security Edition
Niagara Falls, ON
The Niagara Bitcoin-Only Meetup returns to The Usual Suspects in Niagara Falls on Wednesday, August 9th for a special security edition.
Show moreBitcoin Sydney — Coldcard Entropy Bug & Custody Considerations
Brookvale, NSW
On August 8th, Bitcoin Sydney hosts an adhoc Saturday session about the Coldcard entropy bug and what it could mean for how you hold your Bitcoin.
Show moreSan Jose Bitcoin Emergency Meetup — Cold Storage
San Jose, CA
This week’s San Jose Bitcoin Meetup will focus on the recent Coldcard software bug and what it teaches us about securing your bitcoin.
Show moreCOIN BASED: The Coldcard Exploit @ PubKey NYC
New York, NY
COIN BASED returns to PubKey NYC August 6th for an evening focused on one of the most talked-about topics in Bitcoin security right now, the Coldcard exploit..
Show moreSalt Lake Bitcoin Meetup — August Bitcoin Coping Session
Salt Lake City, UT
Salt Lake Bitcoin Meetup hosts an open forum at Brewvies on Aug 5 to discuss recent Bitcoin events, what went wrong, and how to protect yourself going forward.
Show moreGrand Rapids Bitcoin Emergency Meetup — Hardware Security Exploit
Kentwood, MI
Grand Rapids Bitcoin Meetup gathers for a private, self-guided demonstration session to educate anyone needing technical guidance on air-gapped key migration.
Show moreBitcoiner Malaysia Hodler Hangout — Coldcard hack discussion
Kuala Lumpur
Join Bitcoiner Malaysia for the HODLER Hangout on Friday, August 7th to talk about Coldcard hack incident and how to mitigate similar attack in the future.
Show moreCincinnati Bitcoin – Open Roundtable: What Happened with Coldcard?
Covington, KY
With the recent Coldcard wallet exploit, Cincinnati Bitcoiners are pivoting this August 5th session to an open roundtable on the news
Show moreColdcard 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.
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 moreEmergency 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 moreBitcoin Sundays LA Happy Hour — ColdCard
Santa Monica, CA
A lot of people, including the Bitcoin Sundays LA family might be concerned about the ColdCard issues, let’s talk about it and help each other with it.
Show moreColdcard 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.
Bitcoin Builders #8 @ ATL BitLab — COLDCARD Emergency Overview + Town Hall
Atlanta, GA
Bitcoin Builders are back on Wednesday, August 5th at ATL BitLab. We’ll have an overview of what went down with the recent COLDCARD vulnerability,
Show moreBitcoin Sydney Big August 2026 Meetup – Is Self-Custody Dead?
Surry Hills, NSW
Join Bitcoin Sydney on August 12 to meet a fantastic lineup of local Bitcoin legends and discuss the financial revolution that is taking place before our eyes.
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