Latest cybersecurity reporting from selected sources.

Vital Service Providers Need a Plan to Work Through Internet Outages, CISA SaysCritical U.S. infrastructure like water, power and even banking systems will be successfully hacked by enemy cyber warriors in the event of a military confrontation with a peer adversary like Russia or China, officials from the nation's civilian cyber defense agency said.

The U.S. Department of Justice (DoJ) on Wednesday announced the results of a sweeping action undertaken by government authorities and private sector companies to combat cyber-enabled and cryptocurrency fraud targeting Americans

Microsoft is working to address a widespread service issue affecting the mail flow pipeline for Exchange Online customers across North America and Germany. [...]

Authorities in Europe and North America have announced the dismantling of a criminal virtual private network (VPN) service used by criminal actors to obscure the origins of ransomware attacks, data theft, scanning, and denial-of-service attacks

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

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.

J.P. Morgan’s Brian Essex on Why Valuations Drop as Fundamentals Hold SteadyInvestor anxiety over AI's long-term impact is dragging down stock valuations despite steady growth and profitability, while companies focus on long-term valuation assumptions and secure business models, said Brian Essex, executive director of U.S. software equity research at J.P. Morgan.

The U.S. Department of Justice (DoJ) on Thursday announced the disruption of command-and-control (C2) infrastructure used by several Internet of Things (IoT) botnets like AISURU, Kimwolf, JackSkid, and Mossad as part of a court-authorized law enforcement operation

The U.S. Justice Department joined authorities in Canada and Germany in dismantling the online infrastructure behind four highly disruptive botnets that compromised more than three million hacked Internet of Things (IoT) devices, such as routers and web cameras. The feds say the four botnets -- named Aisuru, Kimwolf, JackSkid and Mossad -- are responsible for a series of recent record-smashing distributed denial-of-service (DDoS) attacks capable of knocking nearly any target offline.

AI, Robotics Leaders Warn Chinese Robots Could Disrupt Sensitive OperationsWitnesses told a U.S. House Homeland Security panel that Chinese-developed AI robotics platforms could give Beijing new avenues for surveillance, disruption and physical harm across critical sectors, and urged restrictions on federal use as China expands its industrial dominance.

Ex-FBI Leader Cynthia Kaiser on Sanctions, Ecosystem Disruption, Stronger PoliciesU.S. cyber policy now treats ransomware gangs and fraud networks as transnational criminal organizations. Former FBI cyber leader Cynthia Kaiser explains how sanctions, infrastructure takedowns, and international cooperation could weaken cybercrime ecosystems and reduce attacks.

Also: Anthropic Claude Code Security Impact on AppSec, RSAC Conference PreviewIn this week's panel, four ISMG editors discuss the potential cyber spillover from escalating tensions in the Iran-Israel-U.S. conflict, the market disruption sparked by Anthropic's Claude Code Security launch and a preview of RSAC Conference 2026.

​Microsoft is working to resolve an ongoing outage affecting Microsoft Teams users, causing delays and preventing some from accessing the service. [...]

Microsoft is investigating an outage that blocks some administrators with business or enterprise subscriptions from accessing the Microsoft 365 admin center. [...]

A major U.S. payment gateway and solutions provider says a ransomware attack has knocked key systems offline, triggering a widespread outage affecting multiple services. The incident began on Friday and quickly escalated into a nationwide disruption across BridgePay's platform. [...]

Also, Venezuela Cyberattack, Endesa Confirms Breach and Telegram IP LeakThis week, a software flaw caused the Verizon outage. U.S. cyberattack in Venezuela. ICE identities published online. BreachForums users leaked. Spanish energy provider Endesa data breach. Telegram privacy risk. A MuddyWater upgrade. Dutch man sentenced for hacking a maritime port. A ServiceNow patch.

Misstatement Claims Tossed in Class-Action Securities Case After CrowdStrike OutageA U.S. district judge tossed most claims from investors accusing CrowdStrike of misrepresenting its software testing rigor before a July 2024 outage. The judge said two statements about federal compliance could plausibly be misleading, but said plaintiffs failed to establish intent or recklessness.

Cause Unknown But Many Previous Outages Due to Software MisconfigurationVerizon customers along the Eastern Seaboard and Southern parts of the United States lost mobile phone connectivity Wednesday in an incident that appears to have peaked around 1 p.m.

Experts Say Grid Disruption Amid Venezuela Operation Signals Cyber’s Expanding RoleUncertainty surrounds a Caracas blackout that coincided with a U.S. raid to capture Venezuela President Nicolas Maduro, with analysts weighing the plausibility of U.S. forces using cyber as a tool in layered, covert action amid the historic operation.

Cyber Command Involved in Strikes on CaracasHere's what we don't know: Whether the Caracas grid outage triggered by the U.S. incursion was caused - or at least aided - by a cyberattack. A coordinated attack involving a cyber component against an adversarial electrical grid wouldn't be unprecedented.