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: Former Hodlnaut CEO Charged and Stake DAO Hit by ExploitEvery week, ISMG rounds up cybersecurity incidents in digital assets. This week, the U.S. sanctioned Iran's largest exchange, ex-Hodlnaut CEO faced charges, the U.S. Securities and Exchange Commission sued over a $12.3M AI crypto scam and exploits hit Gravity Bridge, Stake DAO and Gnosis Pay.

The U.S. Treasury's Office of Foreign Assets Control (OFAC) has announced sanctions against Nobitex, Iran's largest cryptocurrency exchange, for facilitating payments related to terrorist activities. [...]

The Instagram accounts for the Obama White House and the Chief Master Sergeant of the U.S. Space Force were briefly defaced with pro-Iranian images and messages over the weekend, after instructions began circulating on Telegram showing how to trick Meta's "AI support assistant" bot into resetting account passwords.

Nimbus Manticore accelerated cyberattacks during wartime, using AI-assisted malware, fake Zoom installers, and SEO poisoning. When the United States launched Operation Epic Fury against Iran at the end of February 2026, most analysts expected the country’s cyber apparatus to hunker down and weather the storm. That’s not what happened. Instead, researchers at Check Point have […]

The Iranian state-sponsored threat actor known as Nimbus Manticore (aka Screening Serpens and UNC1549) has been attributed to a fresh campaign using lures impersonating organizations in the aviation and software sectors across the U.S., Europe, and the Middle East following the joint U.S.-Israeli military campaign against the country in late February 2026

Also, YellowKey Bypasses BitLocker, Škoda Breach, Kingdom Market Operator JailedThis week, U.S. lawmakers urged action on AI, a BitLocker exploit. Škoda, Nvidia’s GeForce NOW partner and telehealth firm OpenLoop reported breaches. Patch Tuesday. A dark market operator sentenced and pro-Ukraine and Iranian-linked hacking. Nitrogen ransomware attack on Foxconn.

The attack surface targeted by Iranian-linked hackers in cyberattacks against U.S. critical infrastructure networks includes thousands of Internet-exposed programmable logic controllers (PLCs) manufactured by Rockwell Automation. [...]

Censys researchers warned that thousands of devices are exposed to the Iranian government’s campaign targeting energy, water, and U.S. government services and facilities. The post Iranian attacks on US critical infrastructure puts 3,900 devices in crosshairs appeared first on CyberScoop.

Iran-affiliated cyber actors are targeting internet-facing operational technology (OT) devices across critical infrastructures in the U.S., including programmable logic controllers (PLCs), cybersecurity and intelligence agencies warned Tuesday

Your PLCs aren't internet-connected, right? Right?! Iranian-affiliated actors have escalated intrusions targeting critical US water and energy facilities, in some cases disrupting operations, the FBI and American cyber defense agencies said on Tuesday.…

CISA: Iran-Linked Groups Actively Exploiting OT Exposure Risks, PLC ProgrammersFederal agencies are warning that Iranian-linked actors have begun actively exploiting internet-facing PLCs and misconfigured OT systems across U.S. critical infrastructure, enabling network access, lateral movement and potential disruption amid rising geopolitical tensions.

Iranian-linked hackers are targeting Internet-exposed Rockwell/Allen-Bradley programmable logic controllers (PLCs) on the networks of U.S. critical infrastructure organizations. [...]

Iranian government hackers are launching disruptive cyberattacks on American energy and water infrastructure, U.S. government agencies “urgently” warned Tuesday. The hackers are taking aim at devices and systems that control industrial processes, and have harmed victims in the last month following the onset of U.S.-Israel strikes against Iran, according to the joint alert from the […] The post Iranian hackers launching disruptive attacks at U.S. energy, water targets, feds warn appeared first on CyberScoop.

Also, Lloyds Data Leak, Dutch Treasury Breach, Citrix Bug Exploit, Pay2Key ActivityThis week, Lloyds data leak hits 450K, Dutch treasury breach, Citrix flaw exploited, Iran-linked ransomware ops, TrueConf zero-day, Russian fraud ring sentenced, Romania targeted, patch gaps persist, and U.S. hospital breach affects 257K.

Experts Cite Prepositioning Risk in Iranian Cyber Operations Amid Escalating WarWarnings from Iranian-linked hacking groups targeting U.S. water systems highlight a growing risk of prepositioned cyber access and rapid attack activation, analysts told ISMG, as federal defenders confront rising geopolitical tensions and operational strain across critical infrastructure sectors.

Experts Cite Prepositioning Risk in Iranian Cyber Operations Amid Escalating WarWarnings from Iranian-linked hacking groups targeting U.S. water systems highlight a growing risk of prepositioned cyber access and rapid attack activation, analysts told ISMG, as federal defenders confront rising geopolitical tensions and operational strain across critical infrastructure sectors.

Threat actors with ties to Iran successfully broke into the personal email account of Kash Patel, the director of the U.S. Federal Bureau of Investigation (FBI), and leaked a cache of photos and other documents to the internet

The list of countries exploiting Internet-connected cameras to give them eyes inside their adversaries' borders continues to expand. What should companies look out for?

The U.S. Federal Bureau of Investigation (FBI) warned network defenders that Iranian hackers linked to the country's Ministry of Intelligence and Security (MOIS) are using Telegram in malware attacks. [...]