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Crypto security — hacks, exploits, and post-mortems

Smart-contract exploits, bridge hacks, phishing campaigns, and exchange breaches cost the crypto industry billions every year. Our security coverage reports each major incident as it surfaces — root cause where known, on-chain forensic trails, attacker addresses, fund flows through mixers and bridges, recovery efforts, and post-mortems published by the affected protocols and audit firms. We also follow the white-hat ecosystem, bug bounty programs at Immunefi and Code4rena, ongoing audits, and the security-tooling vendors (formal verification, runtime monitoring) working to reduce the next breach.

Smart-contract exploitsBridge & oracle hacksExchange breachesPhishing & social engineeringPost-mortemsAudits & bug bounties

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SecurityExchanges
2 Sources

Ledger Disputes OneKey's Vulnerability Claim, Says Flaw Was Already Patched

Security researchers at OneKey demonstrated a flaw in Ledger's Ethereum app that could display one transaction on screen...

Aug 28, 2026, 05:02 AM
LedgerOneKey
Layer 1Security
2 Sources

Bitcoin Executes First Quantum-Safe Transaction on Mainnet

StarkWare announced that Bitcoin processed its first quantum-resistant spending transaction on mainnet, using existing c...

Aug 28, 2026, 02:01 AM
BitcoinStarkWare
Layer 1Security
2 Sources

Bitcoin Broadcasts First Quantum-Safe Transaction Without Network Fork

A quantum-resistant Bitcoin transaction was broadcast this week using the network's existing rules, according to present...

Aug 27, 2026, 11:08 PM
BitcoinSharknet Foundation
DeFiSecurity
2 Sources

Moonwell Loses $8.7M to MAMO Price Manipulation Exploit on Base

Moonwell halted new borrowing on its Core Markets on Base after an attacker exploited a price manipulation vulnerability...

Aug 27, 2026, 08:01 PM
MoonwellBase
SecurityLayer 2
2 Sources

Bitcoin Lightning Devs Issue Emergency Warning After AI Finds Critical Flaw

Developers working on Bitcoin's Lightning Network confirmed that AI-generated bug reports identified a critical vulnerab...

Aug 27, 2026, 07:02 PM
Bitcoin Lightning Network
Layer 1Security
2 Sources

Bitcoin Researchers Propose SHRINCS for Quantum-Resistant Signatures

Bitcoin researchers have published a proposal called SHRINCS that would add quantum-resistant cryptography to the networ...

Aug 27, 2026, 01:10 PM
BitcoinSHRINCS
RegulationSecurity
2 Sources

Saitama CEO Kohli Loses UK Extradition Challenge Over Token Fraud

Manpreet Kohli, CEO of Saitama, lost a UK court challenge against extradition to the United States on wire fraud and mar...

Aug 27, 2026, 01:02 PM
SaitamaManpreet Kohli
Layer 2Security
2 Sources

Core Lightning Warns Node Operators of Security Flaws, Urges Offline Mode

Core Lightning confirmed multiple security vulnerabilities in its Bitcoin Lightning Network software Thursday and advise...

Aug 27, 2026, 09:04 AM
Core LightningBitcoin Lightning Network
SecurityRegulation
2 Sources

US Seizes $25M in Crypto From Romance and Investment Scams

U.S. prosecutors filed five forfeiture cases targeting $25 million in cryptocurrency tied to romance and investment scam...

Aug 27, 2026, 07:33 AM
U.S. Department of JusticeSecret Service
RegulationSecurity
2 Sources

Roman Storm Tornado Cash Retrial Delayed to April 2027

Judge Katherine Polk Failla postponed the retrial of Roman Storm, the Tornado Cash developer, to April 26, 2027, delayin...

Aug 27, 2026, 02:10 AM
Roman StormTornado Cash
Layer 1Security
2 Sources

Ethereum Developers Propose Quantum-Resistant Staking Keys for Validators

Ethereum core developers have drafted a proposal allowing validators to deposit using quantum-resistant cryptographic ke...

Aug 27, 2026, 02:09 AM
EthereumBLS signatures
SecurityExchanges
2 Sources

40 Malicious Firefox Extensions Impersonate Crypto Wallets, Harvest Recovery Phrases

Security researchers identified 40 malicious Firefox add-ons impersonating popular wallet extensions including OKX, Rabb...

Aug 26, 2026, 05:09 AM
FirefoxOKX
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