Hardware Wallet

Trezor says nearly 14,000 customers had personal information exposed after unauthorized access at fulfillment partner ShipMonk. The hardware wallet maker says its own systems and devices remain secure, but affected users face elevated phishing risks.

Bitcoin’s mempool transaction count has surged after the Coldcard wallet hack, highlighting a wave of coin movement across wallets and exchanges. BTC remains confined to its recent trading band as market participants weigh policy risk around the Clarity Act and pressure from real Treasury yields.

A bitcoin wallet linked to the Coldcard hacker is receiving small deposits carrying permanent on-chain messages, ranging from pleas for refunds to opportunistic pitches. The activity highlights how Bitcoin’s OP_RETURN function can turn a theft address into a public, immutable message board.

A new wave of bitcoin sweeps tied to Coldcard-generated addresses may have lifted observed losses to about 1,816 BTC, or nearly $114 million, since July 30. Researchers say the latest pending transactions appear to use replace-by-fee, giving alert users a narrow window to outbid the attacker before confirmation.

Bitcoin holders are moving funds back to centralized exchanges after a Coldcard hardware wallet vulnerability raised fresh concerns about self custody. On chain data shows smaller transfers and exchange deposits spiking in a pattern that contrasts sharply with the response to FTX’s collapse.

A Coldcard firmware vulnerability tied to weak software-based randomness has been linked to three waves of bitcoin sweeps across thousands of addresses. The latest activity is targeting smaller balances and using more complex onchain collection patterns.

Bitcoin slipped nearly 3% after a Coldcard wallet bug rattled confidence in cold storage security and triggered fresh caution across crypto markets. With spot Bitcoin ETFs seeing a $265 million daily outflow, traders are watching whether BTC can defend $60,000 or risk a deeper move toward $50,000.

Binance founder Changpeng Zhao has urged crypto holders to spread funds across multiple wallets after a major Coldcard hardware wallet exploit. The incident exposed a long-running firmware flaw that allowed an attacker to reconstruct private keys offline and drain bitcoin from affected addresses.

A firmware flaw in Coinkite’s Coldcard hardware wallet has been linked to the theft of nearly 600 bitcoin, worth roughly $38 million so far. The incident is forcing Bitcoin investors to reconsider the trade-offs between self-custody, professional custodians and spot Bitcoin ETFs.

A flaw in Coldcard firmware key generation enabled an attacker to drain roughly 594 bitcoin, worth about $38 million, from around 500 single-signature wallets. Coinkite has warned users who created seeds on certain Mk3 devices, while early analysis suggests Mk4, Q and Mk5 devices are not affected so far.