Japanese security researcher Nat Sakimura discusses a surge in data breaches and cyberattacks across Japan and internationally from July to October 2026, attributing the increase to widespread availability of AI models with exploit capabilities like GLM-5.3. The post catalogs dozens of major incidents including breaches at Sakura Internet, Digital Agency, Murauchi.com, Gyazo, and others, alongside international cases involving FBI recruiting systems, Microsoft, and healthcare providers.
Three DeFi protocols lost $11M in a single day through different attack vectors: Payy Network's bridge was exploited for $1.8M, Duelbits lost $7M to a compromised private key, and Meter's bridge was drained of $2.3M. The incident highlights systemic DeFi security vulnerabilities, with bridges and key management failing independently and recurring despite past exploits.
Cryptocurrency experienced its worst month of 2026 in September with losses exceeding $768 million across 55-97 major incidents, according to blockchain security firms PeckShield and CertiK. The $388 million Bitget breach and $320 million Liquid Network exploit dominated the month's losses, though over $270 million from the latter was subsequently recovered. Year-to-date, the crypto sector has suffered 656 security incidents totaling $2.68 billion in losses.
ZKX Wallet published two educational mini-series in September covering eight DeFi exploit mechanisms (rug pulls, honeypots, address poisoning, phishing approvals, flash loan exploits, oracle manipulation, bridge exploits, MEV) and their corresponding defensive countermeasures across 16 posts.
ZKX Wallet published two educational mini-series in September covering eight DeFi exploit mechanisms (rug pulls, honeypots, address poisoning, phishing, flash loans, oracle manipulation, bridge exploits, MEV) and their corresponding defenses. The sixteen-post series paired each threat with practical counter-measures for securing cryptocurrency transactions.
A Cardano community digest post from September 30, 2026 discusses smart contract security issues trending on X, with mentions of exploits, hacks, or fund drains.