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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

Credit Mutuel Arkea Confirms Cyberattack; Losses Reported at $133M Remain Unverified

French bank Credit Mutuel Arkea confirmed a cyberattack that enabled fraudulent transfers from its own account, but has ...

Nov 5, 2026, 05:18 AM
Credit Mutuel ArkeaZachXBT
Layer 1Security
4 Sources

Polygon Proposal Seeks Hard Fork to Return 70.49M POL Tied to Binance, Polymarket Hacks

A Polygon Labs validator support team member has proposed a coordinated hard fork to return about 70.49 million POL, val...

Nov 5, 2026, 04:48 AM
PolygonPOL
SecurityAdoption
2 Sources

Whitehat Developer Recovers About $2M in ETH From 2016 HongCoin ICO Contract

A security researcher known as 0xFlorent recovered roughly 1,003.62 ETH, worth about $2 million, trapped since 2016 in t...

Nov 5, 2026, 03:01 AM
EthereumETH
Layer 1Security
3 Sources

Sui Attributes Three Network Outages to Gas Logic and Validator Bugs

The Sui Foundation attributed three network outages last week, totaling more than 15 hours, to bugs in gas charging logi...

Nov 5, 2026, 12:02 AM
SuiSUI
Layer 1Security
2 Sources

Zcash Patches Consensus Bug in Zebra 4.5.1 as ZEC Price Diverges Across Reports

The Zcash Foundation released Zebra 4.5.1 to fix a sigop counting flaw in P2SH parsing that could split Zebra nodes from...

Nov 4, 2026, 07:01 PM
ZcashZEC
SecurityLayer 2
2 Sources

Lightning Labs Ships LND Mitigation for Critical Linux Kernel Flaw

Lightning Labs released LND v0.21.6-beta and v0.20.7-beta to disable Multipath TCP listeners by default after a critical...

Nov 4, 2026, 06:58 PM
Lightning LabsLND
SecurityDeFi
2 Sources

Privacy Cash Pauses Deposits After $1.2M in Binance Hack Funds Traced to Pools

Privacy Cash suspended new deposits on Nov. 4 after blockchain investigators traced about $1.2 million in theft-linked E...

Nov 4, 2026, 05:59 PM
Privacy CashBinance
Layer 2Security
3 Sources

ApeChain Moves Yuga Labs Ecosystem from LayerZero to Chainlink CCIP

ApeChain announced on November 4, 2026 that it is replacing LayerZero with Chainlink's Cross-Chain Interoperability Prot...

Nov 4, 2026, 04:38 PM
ApeChainYuga Labs
SecurityExchanges
4 Sources

Coinbase Says Customer Assets Unaffected by $6.34B Binance Hack

Coinbase said Wednesday that its systems and customer funds were unaffected by the Binance hot-wallet theft, and that mo...

Nov 4, 2026, 04:28 PM
CoinbaseBinance
SecurityDeFi
2 Sources

Polkadot Treasury Loses $1.38M to XCM Flaw Fixed Months Before Attack

Polkadot's Treasury lost approximately $1.38 million after an attacker exploited an XCM messaging flaw that developers h...

Nov 4, 2026, 03:19 PM
PolkadotParity Technologies
RegulationSecurity
2 Sources

Nova Scotia Judge Orders Bitcoin Wallet Returned to Family of Convicted Killer

A Nova Scotia Supreme Court judge ruled Tuesday that prosecutors failed to link a Bitcoin wallet on a seized laptop to t...

Nov 4, 2026, 10:49 AM
BitcoinWilliam Sandeson
SecurityExchanges
3 Sources

ZachXBT Names Crédit Mutuel Arkéa as Suspected Victim of $133M Crypto Theft

Blockchain investigator ZachXBT has named French banking group Crédit Mutuel Arkéa as the suspected victim of a crypto t...

Nov 4, 2026, 10:29 AM
Crédit Mutuel ArkéaZachXBT
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