Latest cybersecurity reporting from selected sources.

DOJ Says KimWolf Powered Massive DDoS-for-Hire OperationsU.S. prosecutors charged a Canadian man accused of operating the KimWolf botnet, alleging the DDoS-for-hire platform compromised nearly two million IoT devices and powered attacks that reached record traffic volumes worldwide.

Also, More ClickFix Attacks and Teen Booters Arrested in PolandThis week, Russian hackers targeted Signal and WhatsApp users, permit-fee phishing hit U.S. applicants, ClickFix on WordPress sites, Microsoft patched 80 bugs, a 14K-router botnet, Polish teens held over DDoS tools and Finland warned of Russian, Chinese espionage. North Korean IT workers for hire.

Experts Warn of DDoS, Ransomware, Proxy And Other Attacks on Health SectorThe escalating conflict emerging from the U.S. and Israel military strikes this weekend on Iran, which killed the country's top leadership and crippled its internet connectivity, could erupt into cyberattacks against the healthcare sector by Iranian sympathizers and proxies, experts warn.

22-Year-Old Oregon Man Charged With Selling DDoS Attacks Using Mirai VariantFederal prosecutors have charged Oregon man Ethan Foltz, 22, with administering an on-demand service for disrupting websites called "Rapper Bot." Resulting distributed-denial-of-service attacks disrupted DeepSeek and X, as well as the U.S. Department of Defense, which is leading the investigation.

Geopolitical Conflict Involving Iran, Israel, US Ripe for Attacks on SectorGovernment authorities are warning of increased risk of Iranian cyber and related threats against healthcare and public health sector organizations - including ransomware, distributed denial-of-service and other attacks related to that nation's escalated conflicts with Israel and the U.S.

Analysts Warn US Infrastructure May Be Next as Iran Plans Missile Strike ResponseIsrael’s strike on Iranian military and nuclear targets has triggered fears of retaliatory cyberattacks, with analysts warning that Tehran may escalate disruptions against U.S. and Israeli critical infrastructure through proxy campaigns, brute-force attacks or coordinated DDoS strikes.

Experts Express Surprise Over Major Social Platform Falling Victim to DDoS AttacksOne of the world's biggest social networks continued to face intermittent outages Tuesday, apparently due to unsophisticated, distributed denial-of-service attacks. Experts said the attacks were traced to malware-infected devices - many based in the U.S. - and pro-Palestinian hacktivists.

Self-Described Hacktivists Appear to Remain Moscow Foreign Policy ExtensionRussia's use of high-profile online nuisance attacks as a psychology ploy designed to amplify Moscow's geopolitical agenda continues. As Europe has rallied to support Ukraine, self-proclaimed Russian hacktivists have trumpeted their targeting of the U.K. and EU member states, instead of the U.S.

Self-Described Hacktivists Appear to Remain Moscow Foreign Policy ExtensionRussia's use of high-profile online nuisance attacks as a psychology ploy designed to amplify Moscow's geopolitical agenda continues. As Europe has rallied to support Ukraine, self-proclaimed Russian hacktivists have trumpeted their targeting of the U.K. and EU member states, instead of the U.S.

Russian Actors Disrupt Websites of Political Party, Business and Government GroupsPlans by Japan and U.S. to conduct military exercises near the coast of eastern Russia prompted Russia-linked threat actors to unleash a series of denial-of-service attacks this week against a dozen websites in Japan including the majority political party, business groups and governments.

FBI Disrupted DDoS Group in MarchTwo Sudanese brothers are under criminal indictment in the United States for their role in distributed denial-of-service attacks launched under the moniker of Anonymous Sudan. Among the group's targets were a major Los Angeles hospital and Microsoft.