Latest cybersecurity reporting from selected sources.

Claroty Warns of Downtime, 'Devastating' Impact of Vulnerabilities in OT SystemsVulnerabilities in backup power devices and heating and cooling control systems widely used in data centers could enable remote cyberattacks and result in costly downtime and "devastating" operational impact, according to new research from OT security firm Claroty.

Ivanti's Endpoint Manager Mobile Flaws Under Active ExploitationThe European Commission fell victim to a cyberattack that could have allowed the theft of some staff personal information. The European Union's executive body said Friday it detected on Jan. 30 an attack on its "central infrastructure managing mobile devices."

Also, Active Exploits Hit SolarWinds, Ivanti as APT28 Targets EU, UkraineThis week, Italy blocked Russian cyberattacks targeting the Olympics. Flaws in SolarWinds, Ivanti and Microsoft Office. Russia's APT28 ramped up attacks in Ukraine, supply chain attacks, regulators probed major breaches and a U.S. judge sentenced the operator of a darkweb drug marketplace.

Also, Active Exploits Hit SolarWinds, Ivanti as APT28 Targets EU, UkraineThis week, Italy blocked Russian cyberattacks targeting the Olympics. Flaws in SolarWinds, Ivanti and Microsoft Office. Russia's APT28 ramped up attacks in Ukraine, supply chain attacks, regulators probed major breaches and a U.S. judge sentenced the operator of a darkweb drug marketplace.

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.

2025 was a big year for cybersecurity, with cyberattacks, data breaches, threat groups reaching new notoriety levels, and, of course, zero-day flaws exploited in breaches. Some stories, though, were more impactful or popular with our readers than others. This article explores 15 of the biggest cybersecurity stories of 2025. [...]

It’s been a week of chaos in code and calm in headlines. A bug that broke the internet’s favorite framework, hackers chasing AI tools, fake apps stealing cash, and record-breaking cyberattacks — all within days. If you blink, you’ll miss how fast the threat map is changing

Officials Say Major Staffing Cuts and Furloughs Undercut Response to F5 CyberattackCurrent and former federal officials tell Information Security Media Group furloughs and leadership gaps across the federal cyber ecosystem have hindered the U.S. government's ability to coordinate response efforts after a nation-state actor exploited flaws in F5’s BIG-IP systems amid the shutdown.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a critical security flaw impacting Motex Lanscope Endpoint Manager to its Known Exploited Vulnerabilities (KEV) catalog, stating it has been actively exploited in the wild

Also, Cyberattack Disrupts Asahi’s Japan Operations, Halts ProductionThis week, FTC sued Sendit, another Harrods breach, Allianz data breach and a cyberattack disrupted Asahi's Japan operations. WestJet disclosed data theft. Hackers targeted Kido Nursery chain, a VMware privilege escalation flaw was exploited as zero-day, DarkCloud infostealer resurfaced.

CVE-2025-43300 is the latest zero-day bug used in cyberattacks against "targeted individuals," which could signify spyware or nation-state hacking.

Also, Spain Arrests Hacker Behind Leaks Targeting Politicians and JournalistsThis week, Chinese sites mimicked brands, Spain arrested data leak hackers, Swiss health nonprofit ransomware attack, ICC probed a cyberattack, UNFI restored systems, a flaw in smart tractors, RomCom RAT. A U.K. man sentenced for locking employer out of network. A WordPress hack installs a Trojan.

Also, Researchers Exploit Tesla Wall Connector Via Charging CableThis week: Chinese Salt Typhoon hackers hit Viasat, researchers hacked a Tesla charger, Sitecore CMS flaws, Krispy Kreme disclosed hacking damage, Archetyp Market taken down. Episource disclosed a ransomware hack and Spain ruled out cyberattack for the April Iberian blackout.

Also: Google Fixes YouTube Vulnerabilities That Could Have Exposed User EmailsThis week: Microsoft, Ivanti and Google release fixes for critical vulnerabilities and urge priority patching; Lee Enterprises confirms a cyberattack disrupted newspaper operations; and thousands of KerioControl Firewalls exposed to critical remote code execution flaws.

Also: Researchers Bypass GitHub Copilot's Protections, Deloitte Pays $5M for BreachThis week: Sweden clears ship in Baltic cable damage, researchers find ways to bypass GitHub Copilot's protections, Netgear patches router flaws, undetectable Mac backdoor raises alarms, cyberattacks target aviation, Spain nabs international hacker, and Deloitte pays $5M for RIBridges breach.

Also, US Court Rules NSO Group Violated Hacking Laws With Pegasus SpywareThis week, cyberattack disrupts Japan Airlines, U.S. court rules NSO Group violated hacking laws, the European Space Agency’s web store hacked, FTC orders Marriott to overhaul data security, Sophos patches critical firewall flaws and Apache fixes critical SQL injection in Traffic Control.

The Russia-aligned threat actor known as RomCom has been linked to the zero-day exploitation of two security flaws, one in Mozilla Firefox and the other in Microsoft Windows, as part of attacks designed to deliver the eponymous backdoor on victim systems

Ivanti has revealed that a critical security flaw impacting Cloud Service Appliance (CSA) has come under active exploitation in the wild

Also: Critical WHOIS Vulnerability Exposes Internet Security Flaw in .mobi DomainsThis week, cyberthreats rising in Mexico; FBI warned of BEC scams; U.K. police arrested hacking suspect; Avis, Slim CD, Medicare and Fortinet disclosed breaches; Highline public schools reopened after cyberattack; a critical flaw was found in WHOIS; and Konni upped attacks on Russia, South Korea.

Cybersecurity researchers have flagged multiple in-the-wild exploit campaigns that leveraged now-patched flaws in Apple Safari and Google Chrome browsers to infect mobile users with information-stealing malware