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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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DeFiSecurity
2 Sources

Switchboard Oracle Halts Operations on Aptos, SUI, IOTA, Movement

Switchboard, a decentralized oracle network, halted operations across Aptos, SUI, IOTA, and Movement after detecting a p...

Sep 1, 2026, 05:01 AM
SwitchboardAptos
Layer 1Security
3 Sources

Ontology Halts Mainnet Block Production Over Security Concern

Ontology suspended mainnet block production after core developers identified a potential security issue during routine c...

Sep 1, 2026, 12:02 AM
OntologyONT
Layer 1Security
2 Sources

Polygon Patched Security Flaws in Austin and Kyoto Hard Forks Before Disclosure

Polygon deployed the Austin and Kyoto hard forks on its Bor and Heimdall clients and patched denial-of-service and conse...

Aug 31, 2026, 10:04 PM
PolygonBor
DeFiSecurity
2 Sources

Balancer Warns V1 LP Users of Pool-Draining Bug in Legacy Contracts

Balancer advised users to exit liquidity positions from its deprecated v1 contracts after identifying a pool-draining vu...

Aug 31, 2026, 10:02 PM
BalancerSlowMist
Layer 1Security
2 Sources

Fogo Mainnet Halted 46+ Hours After 400M Token Drain From Foundation

Fogo's mainnet stopped producing blocks Saturday following unauthorized activity that drained approximately 400 million ...

Aug 31, 2026, 07:03 PM
Fogo
RegulationSecurity
3 Sources

SEC Charges 38 Entities Over False Investment Adviser Filings

The SEC filed charges against 38 entities accused of submitting false adviser registration filings, using fictitious aud...

Aug 31, 2026, 06:10 PM
SECIAPD
SecurityLayer 1
2 Sources

Cosmos EVM Vulnerability Drained $5.7M Across Six Chains in August

Attackers exploited a critical Cosmos EVM bug between August 20 and 25 to steal nearly $6 million across MANTRA, TAC, Ki...

Aug 31, 2026, 09:03 AM
Cosmos LabsMANTRA
DeFiSecurity
5 Sources

Cronos Network Halts After $75M Exploit in Tectonic Lending Protocol

Cronos validators paused the blockchain after an attacker exploited Tectonic's lending protocol, inflating the TONIC tok...

Aug 31, 2026, 05:07 AM
CronosTectonic
DeFiSecurity
4 Sources

Ostium Halts Trading After $18M Oracle Key Exploit

Ostium suspended trading after an attacker exploited a compromised oracle signer key to drain approximately $18 million ...

Aug 31, 2026, 02:02 AM
OstiumArbitrum
Security
2 Sources

Crypto Security Losses Surge to $1.1B in First Half of 2026

Cryptocurrency security incidents caused $1.1 billion in losses across 212 cases in the first half of 2026, with key com...

Aug 30, 2026, 06:10 PM
BlockaidCoinGecko
Security
2 Sources

Project Eleven Proposes Quantum Recovery Tool for Bitcoin Wallets

Project Eleven has funded a cryptographic proof designed to help Bitcoin users recover wallets after a quantum computing...

Aug 30, 2026, 02:11 PM
BitcoinProject Eleven
StakingSecurity
2 Sources

ether.fi Partners with Nexus Mutual for 15,000 ETH Slashing Coverage

ether.fi has selected Nexus Mutual to underwrite slashing insurance covering up to 15,000 ETH worth of penalties on the ...

Aug 30, 2026, 03:01 AM
ether.fiNexus Mutual
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