Latest cybersecurity reporting from selected sources.

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.

Medical Device Manufacturer Hack Was Likely OpportunisticAn Iranian cyberattack on medical device maker Stryker's internal IT environment does not appear to affect connected products used by the company's healthcare clients. But an outage of Stryker's electronic ordering system could lead to supply chain issues for its customers.

Healthcare Hit Shows Symbols Matter as Iran Shifts Focus to Economic DamageCybersecurity experts say that the Handala "hacktivist" group that claimed credit for attacks against two American firms on Wednesday is run by the Iranian government. The shift to destructive cyberattacks parallels Iran's attempt to inflict greater economic damage on the United States and allies.

Iranian OT Hacking Team Has Gone Quiet … Too QuietArmed exchanges between Iran and Israel and the prospect of U.S. armed intervention against Tehran has cyber defenders warning about hacking risks to critical infrastructure. Iran's CyberAv3ngers doesn't possess the sophistication of Chinese or Russian actors but it's still a persistent threat.

Meanwhile, next-gen script kiddies are levelling up faster thanks to agentic AI Interview Iran's state-sponsored cyber operatives and hacktivists have all increased their activities since the military conflict with Israel erupted last week – but not necessarily in the way that Amazon chief information security officer CJ Moses expected.…

The Iranian state-sponsored hacking group APT34, aka OilRig, has recently escalated its activities with new campaigns targeting government and critical infrastructure entities in the United Arab Emirates and the Gulf region. [...]

An Iran-based hacking group known as Pioneer Kitten is breaching defense, education, finance, and healthcare organizations across the United States and working with affiliates of several ransomware operations to extort the victims. [...]

A state-sponsored hacking team employed a clever masquerade and elaborate back-end infrastructure as part of a five-year info-stealing campaign that compromised the US State and Treasury Departments, and hundreds of thousands of accounts overall.

Microsoft has discovered that an Iranian hacking group known as 'Mint Sandstorm' is conducting cyberattacks on US critical infrastructure in what is believed to be retaliation for recent attacks on Iran's infrastructure. [...]

US and UK cybersecurity and law enforcement agencies today shared info on new malware deployed by the Iranian-backed MuddyWatter hacking group in attacks targeting critical infrastructure worldwide. [...]