Community curated by people like you

Bitcoin wallets & custody stories — Geo News

Bitcoin wallets & custody stories

Aug 6, 2026

Stolen Bitcoin from Coldcard Hardware Wallet Exploit Begins Moving Through Mixers as Multiple Attackers Drain Funds

Following a firmware vulnerability in Coldcard hardware wallets that affected seed generation, attackers have begun laundering stolen cryptocurrency, with 64 BTC ($4.17M) and 200 ETH ($380K) routed through mixers. At least 15 separate attackers are exploiting the vulnerability, with the largest controlling 1,159 BTC that remains unmoved, in what's being called the biggest hardware wallet exploit in crypto history with losses exceeding $30 million.

Aug 6, 2026·9 sources

00

Bitcoin Red Team Identifies Nearly 5,000 Security Vulnerabilities in 30-Hour AI-Assisted Audit of Open-Source Projects

A volunteer group of 16 security researchers used AI tools to audit 390 Bitcoin-related open-source projects, discovering 4,962 potential vulnerabilities in approximately 30 hours, including 85 critical and 635 high-severity issues. The rapid security sweep was prompted by a recent $100 million Coldcard wallet exploit.

Aug 6, 2026·9 sources

00

Zeus Wallet Takes Bitcoin Lightning Network Services Offline Following Cybersecurity Incident

Zeus Wallet, a self-custodial Bitcoin Lightning Network wallet, shut down its infrastructure on Wednesday after experiencing a cybersecurity incident and is conducting a security audit before restoring services.

Aug 6, 2026·2 sources

00

Aug 4, 2026

Former LAPD Officer Eric Halem Sentenced to Life Plus 15 Years for $350,000 Bitcoin Home Invasion Robbery

Eric Halem, a former Los Angeles Police Department reserve officer, received a life sentence plus 15 years in state prison for his role in a December 2024 armed home invasion in Koreatown, where he and accomplices posed as police to rob a 17-year-old of a hard drive containing approximately $350,000 in Bitcoin.

Aug 4, 2026·7 sources

00

Aug 2, 2026

Coldcard Bitcoin wallet exploit losses exceed $100 million across multiple attack waves

A firmware vulnerability in Coldcard hardware wallets has enabled hackers to drain over $100 million in Bitcoin from thousands of addresses across at least four coordinated attack waves since July 30.

Aug 2, 2026·16 sources

00

Jul 31, 2026

Coldcard hardware wallet flaw drains 594 BTC in 25-minute sweep

Coinkite warns users of Coldcard Mk3 signing devices to move funds after an attacker exploited a firmware vulnerability to drain $38 million in Bitcoin from old wallets in a coordinated 25-minute sweep.

Jul 31, 2026·4 sources

00

Coldcard Hardware Wallet Vulnerability Leads to Theft of Up to $70 Million in Bitcoin

A security flaw in Coldcard's Mk3 hardware wallet, introduced in firmware version 4.0.0 in March 2021, enabled attackers to steal between $38-70 million worth of bitcoin from hundreds of wallets by exploiting predictable key generation. The vulnerability affected wallets that used the device to generate seed phrases, prompting urgent warnings for users to move funds to newly generated wallets.

Jul 31, 2026·7 sources

00

Coldcard Hardware Wallet Vulnerability Leads to Theft of Up to $70 Million in Bitcoin

A security flaw in Coldcard's Mk3 hardware wallet, introduced in firmware version 4.0.0 in March 2021, enabled attackers to steal between $38-70 million worth of bitcoin from hundreds of wallets by exploiting predictable key generation. The vulnerability affected wallets that used the device to generate seed phrases, prompting urgent warnings for users to move funds to newly generated wallets.

Jul 31, 2026·14 sources

00

Jul 27, 2026

SparkKitty malware found in app stores targets crypto wallet seed phrases

Security researchers detailed SparkKitty malware that infiltrated Apple's App Store and Google Play, scanning photos on infected iPhones and Android devices for cryptocurrency wallet recovery phrases.

Jul 27, 2026·2 sources

00

Jul 22, 2026

Annamite Capital Launches Institutional Bitcoin Treasury Management Platform

Annamite Capital, founded by Tom Geary and Lucas Gaylord, has launched an institutional Bitcoin treasury management platform offering separately managed accounts through which clients retain legal ownership of their Bitcoin while assets remain with qualified custodians or in approved tri-party arrangements. The platform seeks to generate Bitcoin-denominated returns through market-neutral investment strategies while maintaining institutional governance and risk-management standards.

Jul 22, 2026·3 sources

00

Jul 19, 2026

Project Eleven develops quantum-proof Bitcoin recovery tool for compromised wallets

Quantum security startup Project Eleven has funded a proof that allows wallet owners to reclaim Bitcoin after quantum computers can forge signatures, using the wallet's key-derivation path as ownership proof. The tool runs in 243 milliseconds on a laptop.

Jul 19, 2026·2 sources

00

Jul 16, 2026

Ledger launches Agent Stack toolkit to enable AI agents to interact with crypto wallets while keeping keys secure

Ledger has released Ledger Agent Stack, an open-source toolkit that allows AI agents to read wallet balances and prepare cryptocurrency transactions while requiring human approval via hardware for any fund movements, keeping private keys out of AI control.

Jul 16, 2026·3 sources

00

Ledger launches Agent Stack toolkit to enable AI agents to interact with crypto wallets while keeping keys secure

Ledger has released Ledger Agent Stack, an open-source toolkit that allows AI agents to read wallet balances and prepare cryptocurrency transactions while requiring human approval via hardware for any fund movements, keeping private keys out of AI control.

Jul 16, 2026·5 sources

00

Jul 14, 2026

Dormant Bitcoin Wallet from 2017 Moves $383 Million in 5,908 BTC After Eight Years

A Bitcoin wallet that had been inactive since the 2017 market peak transferred its entire holdings of 5,908 BTC, worth approximately $383 million, to a new address on July 16, 2026. The coins were originally acquired near Bitcoin's 2017 peak at around $16,000 each and have gained roughly 284% since then.

Jul 14, 2026·9 sources

00

Jun 6, 2026

Chinese Court Sentences Man to Nearly 11 Years for Stealing 107 Bitcoin After Memorizing Seed Phrase

A court in Qingdao, China sentenced a man surnamed Zhang to 10 years and nine months in prison for stealing 107 Bitcoin from victim Feng after memorizing most of the 12-word wallet recovery phrase. The ruling establishes legal precedent by treating Bitcoin as property under Chinese law.

Jun 6, 2026·4 sources

00

Satoshi-era Bitcoin wallet moves 15 BTC after 14 years, complicating $285 billion lawsuit

A Bitcoin wallet dormant since March 2011 transferred 15 BTC on June 2, 2026, months after receiving a legal notice via blockchain demanding proof of ownership in a $285 billion lawsuit. The wallet retained 20.55 BTC as change.

Jun 6, 2026·2 sources

00

New York Judge Halts Lawsuit Claiming 39,000 Dormant Bitcoin Wallets Worth $285 Billion

A New York judge temporarily halted a lawsuit over 39,000 dormant Satoshi-era Bitcoin wallets worth approximately $285 billion, where plaintiffs claim ownership under lost-property laws. The case involves wallets that have been inactive for over 14 years, with at least one address receiving legal notice via Bitcoin's OP_RETURN field demanding proof of ownership.

Jun 6, 2026·2 sources

00

May 11, 2026

Dormant Bitcoin Whale Moves $40 Million After 12.5 Years of Inactivity

A Bitcoin wallet that had been dormant since November 2013 transferred 500 BTC worth approximately $40 million on May 10, marking the first movement of these Satoshi-era coins in over 12 years.

May 11, 2026·3 sources

00

May 8, 2026

Strategy Abandons 'Never Sell' Bitcoin Policy, Signals Willingness to Liquidate Holdings

Strategy executives, including Michael Saylor, announced the company may sell Bitcoin to fund dividend payments or other corporate needs, reversing years of hardline 'never sell' rhetoric as the firm reported its third consecutive quarterly loss.

May 8, 2026·8 sources

00

Apr 28, 2026

Jack Dorsey's Block Discloses $2.2 Billion in Bitcoin Holdings in Q1 Proof-of-Reserves Report

Block Inc. revealed it holds 28,355 BTC ($2.2 billion) including $1.5 billion in customer Bitcoin and $692 million in corporate treasury, adding 114 BTC in Q1 and committing to regular third-party audited reports.

Apr 28, 2026·4 sources

00

Apr 17, 2026

Zonda Exchange CEO Discloses 4,500 BTC Wallet Inaccessible Amid Withdrawal Crisis

The CEO of troubled Polish exchange Zonda revealed a Bitcoin wallet holding approximately 4,500 BTC (worth over $330 million) is inaccessible because private keys were never transferred during a company handover.

Apr 17, 2026·2 sources

00

Apr 14, 2026

Exodus Sues W3C and CEO Garth Howat to Compel $175 Million Acquisition

Crypto wallet firm Exodus filed a lawsuit in Delaware Court of Chancery seeking to force W3C and its CEO to comply with obligations under a November 2025 stock purchase agreement for a $175 million acquisition.

Apr 14, 2026·1 source

00

Apr 13, 2026

SEC Issues Guidance Exempting Certain Crypto Wallet Interfaces from Broker Registration

The U.S. SEC issued new guidance indicating that certain user-facing interfaces used in crypto securities trading may not need to register as broker-dealers if they allow users to transact using their own wallets without intermediation.

Apr 13, 2026·3 sources

00

Musician Loses $420K in Bitcoin to Fake Ledger App on Apple App Store

American musician Garrett Dutton (G. Love) lost 5.9 Bitcoin ($420,000) after entering his seed phrase into a fraudulent Ledger app that appeared on Apple's App Store. The funds were quickly sent to KuCoin deposit addresses.

Apr 13, 2026·2 sources

00

Apr 12, 2026

SpaceX Holds $603 Million in Bitcoin Despite $5 Billion Loss Tied to xAI

Elon Musk's SpaceX holds 8,285 BTC worth $603 million in Coinbase Prime custody, even as the company swung from an $8 billion profit to nearly $5 billion loss ahead of its IPO push, according to Arkham data.

Apr 12, 2026·1 source

00

Apr 9, 2026

Lightning Labs CTO unveils first working prototype for Quantum-Resistant Bitcoin Wallet Rescue

Lightning Labs CTO Olaoluwa Osuntokun published a working prototype on April 8, 2026, that lets Bitcoin wallet owners prove ownership via a zero-knowledge proof of their seed phrase, without revealing it, providing an escape hatch if an emergency quantum-defense upgrade ever locks users out of their funds. Running on a consumer MacBook, the tool generates a verifiable proof in 55 seconds with a 1.7 MB output, closing a gap that had existed only in theory: how to protect Bitcoin from a quantum threat without freezing ordinary users out.

Apr 9, 2026·4 sources

00

Apr 6, 2026

Circle Announces Quantum-Resistant Roadmap for Arc Blockchain

Circle has unveiled plans to make its Arc layer-1 blockchain quantum-resistant from day one, allowing users to create wallets that can withstand future quantum computer attacks. The move comes amid growing concerns that 'Q-Day' may arrive sooner than anticipated.

Apr 6, 2026·2 sources

00

Top claims

▪On-chain transaction construction differences across the Coldcard attack waves suggest that multiple independent actors exploited the same firmware vulnerability.
▪Bitcoin Core developer Luke Dashjr warned that common dice are not cryptographically secure and advised users to use precision casino dice alongside other entropy sources.
▪The largest Coldcard attacker controls 1,159 BTC across seven or eight addresses, which has remained entirely unmoved and has not been sent to mixers or exchanges.

People involved

Satoshi Nakamoto Michael Saylor Elon Musk

Subtopics

Crypto privacy & surveillance

Hardware wallet security

Bitcoin security & risks

Open source AI ecosystems & communities

AI tools & products

Bitcoin Layer 2s & scaling

Lightning Network

Self-custody risks

Cryptocurrency theft

Hardware wallet vulnerabilities

Institutional crypto adoption

Bitcoin use cases

Quantum computing

Blockchain quantum resistance

Cryptography & hashing

Hardware wallets

Bitcoin history

On-chain analysis

Bitcoin regulation

Landmark crypto cases

Crypto regulation

Bitcoin philosophy & culture

Bitcoin market analysis

AI standards, audits & compliance

Bitcoin Market Maturation Cycle

US Strategic Bitcoin Reserve

Crypto custody regulation

Crypto exchanges

Ethereum wallets

DeFi wallets & UX

Crypto regulatory agencies

Zero-knowledge proofs

Bitcoin protocol & upgrades

Blockchain technology

Related timelines

Iran War

US Congress

Venture capital funding

Strait of Hormuz blockage

Trump administration