Coldcard Suspected of Facing a Fourth Organized Attack Wave, Involving ~388.9 BTC Alex Thorn, Head of Research at Galaxy Research, said a fourth organized attack wave may be targeting Coldcard users. Between blocks 960,778 and 960,792, 218 transactions involving 462 victim

What happened

Coldcard users appear to be targeted by a fourth organized attack wave that moved roughly 388.9 BTC across 218 transactions involving 462 victims between blockchain blocks 960,778 and 960,792.

Confirmed

Global impact / market context

If the attack succeeds, users could lose private keys and funds, reducing confidence in hardware wallets and prompting users to seek more secure storage solutions, which may shift demand toward alternative devices.

Analyst inference

The crypto market is sensitive to security breaches; recent high‑profile hacks have caused short‑term price dips and increased scrutiny of wallet providers, influencing investor sentiment toward Bitcoin and related assets.

Analyst inference

What to watch

1. Updates from Coldcard on any firmware patches or security advisories, which could restore user confidence and limit further losses. Proposed
2. Reports of additional suspicious transactions in later blocks, indicating whether the attack continues or has been contained. Proposed
3. User reports of compromised Coldcard devices or alerts from the Coldcard community, which would confirm the scope of the attack and guide protective actions. Analyst inference

Affected assets

• BTC — Bitcoin

Evidence

• x.com