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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
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
Layer 2Security
2 Sources

Polygon Labs Issues Urgent Upgrade Notice After Austin and Kyoto Hardforks

Polygon Labs has issued an urgent notice requiring nodes to upgrade following the Austin and Kyoto hardforks, which patc...

Aug 29, 2026, 09:04 PM
Polygon LabsPolygon
RegulationSecurity
2 Sources

UK Police Seize $1.4M in Bitcoin Linked to Shuttered Darknet Markets

UK law enforcement seized 20.21 BTC and additional assets valued at $1.4 million traced to darknet marketplaces that ope...

Aug 29, 2026, 01:04 PM
Avon and Somerset PoliceBitcoin
SecurityLayer 1
2 Sources

Ripple Prepares XRP Ledger for Quantum Computing Threats

Ripple is implementing quantum-resistant cryptography on XRP Ledger ahead of potential cryptographically relevant quantu...

Aug 29, 2026, 03:03 AM
RippleXRP Ledger
Layer 1Security
2 Sources

Galaxy Digital Commits $5M to Bitcoin Quantum Readiness Initiative

Galaxy Digital announced a Bitcoin Quantum Readiness Initiative backed by up to $5 million in funding to prepare the net...

Aug 29, 2026, 03:02 AM
Galaxy DigitalBitcoin
SecurityExchanges
2 Sources

Avici Neobank Drained of Over $1M in Live Attack on Solana

An attacker drained more than $1 million from Avici, a Solana-based crypto card platform, in an ongoing assault that add...

Aug 28, 2026, 11:03 PM
AviciAVICI
SecurityDeFi
2 Sources

The Sandbox to Reimburse SAND Holders After $700K Bridge Exploit

The Sandbox announced Aug. 27 it will repay SAND holders 1:1 after a bridge exploit on Aug. 21 drained 14.7 million toke...

Aug 28, 2026, 07:01 PM
The SandboxSAND
SecurityLayer 1
2 Sources

Core Lightning Patches Multiple Vulnerabilities; Urges Nodes Offline if Not Updated

Core Lightning developers issued an urgent security advisory on August 23, asking node operators to upgrade to version 2...

Aug 28, 2026, 06:12 PM
Core LightningBitcoin
ExchangesSecurity
2 Sources

Movement Labs Files for Chapter 11 Bankruptcy After MOVE Token Collapse

Movement Labs filed for Chapter 11 bankruptcy months after a market-making scandal and internal investigation into its M...

Aug 28, 2026, 05:03 AM
Movement LabsMOVE
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