Security researchers identified critical vulnerabilities in Coldcard hardware wallets and the Liquid Network sidechain, which were characterized as among the most severe in Bitcoin's history.

"Coldcard and Liquid Network hacks described as worst in Bitcoin history" — Gizmodo · AI & Technology

27 Sept 2026

What it means

The Gizmodo article reports on two separate but severe security breaches in Bitcoin infrastructure: a five-year-old in hardware wallets that allowed attackers to drain $130 million, and a hack on the that also resulted in significant losses. These incidents are characterized as among the worst in Bitcoin's history because they compromised highly trusted systems and led to large-scale theft.

Accuracy & sourcesGrounded

The claim is based on a Gizmodo article that aggregates details from earlier reports, such as a Galaxy Research brief from August 2026 that documented the $130 million Coldcard hack. The provenance tier is aggregated/secondary with no primary source cited, so the solidity depends on Gizmodo's sourcing; however, multiple outlets (AOL, Galaxy, Blooming Bit) have covered the same events, lending cross-source credibility to the core claims.

Security researchers identified critical vulnerabilities in Coldcard hardware wallets and the Liquid Network sidechain, which were characterized as among the most severe in Bitcoin's history.

What it means

Accuracy & sourcesGrounded

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