Latest cybersecurity reporting from selected sources.

Also: AscendEX Shuts Down; Ethereum Foundation on AI Bug HuntingThis week, Ostium paused trading, AscendEX shut down, Ethereum said AI hastens bug hunting, not verification, the United States charged an inmate over seized transfer, ex-Sheriff's deputy jailed for extortion, Tangem card security, Iran-linked wallets sanctions and the U.S. may drop BitClub charges.

Also: Chinese Firms Indicted in Crypto-Linked Fentanyl Supply CaseThis week, charges filed in Uranium Finance hack, indictment of Chinese firms in fentanyl supply case, a class action lawsuit against Nvidia, Drift Protocol exploit, KuCoin operational barriers in the United States and a U.K. sanction filed against Xinbi.

Also: US' Multi-Million Dollar Scam Funds SeizureIran exchange leak raises sanctions risks, $580M frozen in scam crackdown, $61M romance scam funds seized, feds seek $327K in dating scam case, Russia exploit broker sanctioned, South Korean wallet recovery phrase exposure and arrest in custody bitcoin theft, Axiom data misuse and Uniswap lawsuit ends.

Also: IoTex Bridge Exploit Linked to Private Key BreachThis week, Step Finance shuts down, IoTeX bridge exploit, Russia-linked exchanges help evade sanctions, Australian charged in $3.5 million scam, a hacker returned $21 million in seized bitcoin to South Korean prosecutors and Malaysia arrested 12 police officers in an extortion case.

Also: US Sanctions UK-Registered Exchanges Over Iran TiesThis week, Step Finance and CrossCurve hacks, the United States sanctioned U.K.-registered exchanges over Iran ties, forfeiture finalization of funds linked to Helix, Coinbase data breach, 2025's illicit crypto flows and a UK regulator banned Coinbase ads.

Also: Man Denied Bankruptcy Discharge Over $12.5M Crypto Ponzi DebtsU.S. sanctions Iranian shadow banking network, Texas man denied bankruptcy discharge, Nemo blames $2.6M exploit on developer errors, THORChain founder hacked, Shibarium Bridge hit by $2.4M hack, Denver court rules pastor's $3.3M project a fraud and NYDFS tells banks to use blockchain analytics.

Also: Hackers Use Ethereum Smart Contracts to Hide Malicious npm CodeSwissBorg $41M hack, hidden malicious npm code, sanctions on Southeast Asian networks, California launderer's sentencing, Kinto's shuttering, Venus Protocol pays back victim, Nemo Protocol hack, DOJ's $5M recovery effort, Lagarde's proposed rules and the SEC-CFTC plan for market clarity.

Also: 5 Guilty Pleas in Cambodia-linked $36.9 Million ScamEvery week, ISMG rounds up cybersecurity incidents in digital assets. This week, charges against a crypto firm founder in a $530M sanctions evasion and money laundering case, guilty pleas in a $36.9M scam, an $8.3M exploit of Alex Lab, and Cetus Protocol relaunched after a $223M hack.

Tianfeng Guan Allegedly Developed Zero-Day Exploit of Sophos XG FirewallThe U.S. federal government rolled out its heavy guns Tuesday against a Chinese hacker allegedly at the center of a zero-day exploit used to hack firewalls made by Sophos, unsealing an indictment, rolling out sanctions and offering $10 million for information leading to the suspect's arrest.