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Unmasking impostors is something the art world has faced for decades, and there are valuable lessons from the works of Elmyr de Hory that can apply to the world of defensive cybersecurity. During the 1960s, de Hory gained infamy as a premier forger, passing off counterfeit masterworks of Picasso, Matisse, and Renoir to unsuspecting collectors and renowned museums. Over the next several decades, more than a thousand of his works slipped past experts who relied on trusted signatures, familiar patterns, and reputable provenance. It’s not unlike the challenges SOCs are facing now. We’re firmly in the Age of Imitation. Cyberattackers, equipped with AI, are mastering the art of imitating the familiar, posing as trusted users and masking their activity within legitimate processes and ordinary network traffic. As history shows, it’s often easier to identify impostors when you know what to look for. Key takeaways for defenders: Mimicry is the new normal: 81% of attacks are malware-free Ag...

Some weeks in security feel loud. This one feels sneaky. Less big dramatic fireworks, more of that slow creeping sense that too many people are getting way too comfortable abusing things they probably shouldn’t even be touching. There’s a little bit of everything in this one, too. Weird delivery tricks, old problems coming back in slightly worse forms, shady infrastructure doing shady infrastructure things, and the usual reminder that if criminals find a workflow annoying, they’ll just make a new one by Friday. Efficient little parasites. You almost have to respect the commitment. A few of these updates have that nasty “yeah, that tracks” energy. Stuff that sounds niche right up until you picture it landing in a real environment with real users clicking real nonsense because they’re busy and tired and just trying to get through the day. Then it stops being abstract pretty fast. So yeah, this week’s ThreatsDay Bulletin is a solid scroll-befor...

The kernel exploit for two security vulnerabilities used in the recently uncovered Apple iOS exploit kit known as Coruna is an updated version of the same exploit that was used in the Operation Triangulation campaign back in 2023, according to new findings from Kaspersky. "When Coruna was first reported, the public evidence wasn't sufficient to link its code to Triangulation — shared vulnerabilities alone don't prove shared authorship," Boris Larin, principal security researcher at Kaspersky GReAT, told The Hacker News in a statement. "Coruna is not a patchwork of public exploits; it is a continuously maintained evolution of the original Operation Triangulation framework. The inclusion of checks for recent processors like the M3 and newer iOS builds shows that the original developers have actively expanded this codebase. What began as a precision espionage tool is now deployed indiscriminately." Coruna was first documented by Google and iVerify earli...

Cybersecurity researchers have discovered a new payment skimmer that uses WebRTC data channels as a means to receive payloads and exfiltrate data, effectively bypassing security controls. "Instead of the usual HTTP requests or image beacons, this malware uses WebRTC data channels to load its payload and exfiltrate stolen payment data," Sansec said in a report published this week. The attack, which targeted a car maker's e-commerce website, is said to have been facilitated by PolyShell , a new vulnerability impacting Magento Open Source and Adobe Commerce that allows unauthenticated attackers to upload arbitrary executables via the REST API and achieve code execution. Notably, the vulnerability has since come under mass exploitation since March 19, 2026, with more than 50 IP addresses participating in the scanning activity. The Dutch security company said it has found PolyShell attacks on 56.7% of all vulnerable stores. The skimmer is designed as a self-executing ...

The alleged administrator of the LeakBase cybercrime forum has been arrested by Russian law enforcement authorities, state media reported Thursday. According to TASS and MVD Media , a news website linked to the Russian Interior Ministry, the suspect is a resident of the city of Taganrog. The suspect is said to have been detained for creating and managing a criminal site that allowed stolen personal databases to be traded since 2021. In addition, technical equipment and other items of evidentiary value were confiscated during a search of the suspect's residence. "The platform hosted hundreds of millions of user accounts, bank details, usernames, and passwords, as well as corporate documents obtained through hacking," said Irina Volk, an official spokesperson for the Russian Ministry of Internal Affairs. "More than 147,000 users registered on the forum could buy and sell this data, as well as use it to commit fraudulent acts against citizens." LeakBase was...

Cybersecurity researchers have flagged a new evolution of the GlassWorm campaign that delivers a multi-stage framework capable of comprehensive data theft and installing a remote access trojan (RAT), which deploys an information-stealing Google Chrome extension masquerading as an offline version of Google Docs. "It logs keystrokes, dumps cookies and session tokens, captures screenshots, and takes commands from a C2 server hidden in a Solana blockchain memo," Aikido security researcher Ilyas Makari said in a report published last week. GlassWorm is the moniker assigned to a persistent campaign that obtains an initial foothold through rogue packages published across npm, PyPI, GitHub, and the Open VSX marketplace. In addition, the operators are known to compromise the accounts of project maintainers to push poisoned updates. The attacks are careful enough to avoid infecting systems with a Russian locale and use Solana transactions as a dead drop resolver to fetch the com...

In September 2025, Anthropic disclosed that a state-sponsored threat actor used an AI coding agent to execute an autonomous cyber espionage campaign against 30 global targets. The AI handled 80-90% of tactical operations on its own, performing reconnaissance, writing exploit code, and attempting lateral movement at machine speed. This incident is worrying, but there's a scenario that should concern security teams even more: an attacker who doesn't need to run through the kill chain at all, because they've compromised an AI agent that already lives inside your environment. One that already has the access, the permissions, and a legitimate reason to move across your systems every day. A Framework Built for Human Threats The traditional cyber kill chain assumes attackers have to earn every inch of access. It's a model developed by Lockheed Martin in 2011 to describe how adversaries move from initial compromise to their ultimate objective, and it's shaped how secu...

The U.S. Department of Justice (DoJ) said a Russian national has been sentenced to two years in prison for managing a botnet that was used to launch ransomware attacks against U.S. companies. Ilya Angelov, 40, of Tolyatti, Russia, was also fined $100,000. Angelov, who went by the online aliases "milan" and "okart," is said to have co-managed a Russia-based cybercriminal group known as TA551 (aka ATK236, G0127, Gold Cabin, Hive0106, Mario Kart, Monster Libra, Shathak, and UNC2420 ) between 2017 and 2021. "Angelov's group built a network of compromised computers (a 'botnet') through distribution of malware-infected files attached to spam emails," the DoJ said. "Angelov and his co-manager then monetized this botnet by selling access to individual compromised computers ('bots')." According to the sentencing memorandum , the threat group developed programs to distribute spam email and refined malware to bypass security tools...

Cybersecurity researchers are calling attention to an active device code phishing campaign that's targeting Microsoft 365 identities across more than 340 organizations in the U.S., Canada, Australia, New Zealand, and Germany. The activity, per Huntress, was first spotted on February 19, 2026, with subsequent cases appearing at an accelerated pace since then. Notably, the campaign leverages Cloudflare Workers redirects with captured sessions redirected to infrastructure hosted on a platform-as-a-service (PaaS) offering called Railway, effectively turning it into a credential harvesting engine. Construction, non-profits, real estate, manufacturing, financial services, healthcare, legal, and government are some of the prominent sectors targeted as part of the campaign.  "What also makes this campaign unusual is not just the device code phishing techniques involved, but the variety of techniques observed," the company said. "Construction bid lures, landing page code...

The U.S. Federal Communications Commission (FCC) said on Monday that it was banning the import of new, foreign-made consumer routers, citing "unacceptable" risks to cyber and national security. The action was designed to safeguard Americans and the underlying communications networks the country relies on, FCC Chairman Brendan Carr said in a post on X. The development means that new models of foreign-produced routers will no longer be eligible for marketing or sale in the U.S. The move comes in the wake of a national security determination provided by Executive Branch Agencies, Carr added. To that end, all consumer-grade routers manufactured in foreign countries have been added to the Covered List , unless they have been granted a Conditional Approval by the Department of War (DoW) or the Department of Homeland Security (DHS) after determining that they do not pose any risks. As of writing, the approved list only includes drone systems and software-defined radios (SDRs) ...

TeamPCP , the threat actor behind the recent compromises of Trivy and KICS, has now compromised a popular Python package named litellm , pushing two malicious versions containing a credential harvester, a Kubernetes lateral movement toolkit, and a persistent backdoor. Multiple security vendors, including Endor Labs and JFrog , revealed that litellm versions 1.82.7 and 1.82.8 were published on March 24, 2026, likely stemming from the package's use of Trivy in their CI/CD workflow. Both the backdoored versions have since been removed from PyPI. "The payload is a three-stage attack: a credential harvester sweeping SSH keys, cloud credentials, Kubernetes secrets, cryptocurrency wallets, and .env files; a Kubernetes lateral movement toolkit deploying privileged pods to every node; and a persistent systemd backdoor (sysmon.service) polling 'checkmarx[.]zone/raw' for additional binaries," Endor Labs researcher Kiran Raj said. As observed in previous cases, the ha...

A large-scale malvertising campaign active since January 2026 has been observed targeting U.S.-based individuals searching for tax-related documents to serve rogue installers for ConnectWise ScreenConnect that drop a tool named HwAudKiller to blind security programs using the bring your own vulnerable driver ( BYOVD ) technique. "The campaign abuses Google Ads to serve rogue ScreenConnect (ConnectWise Control) installers, ultimately delivering a BYOVD EDR killer that drops a kernel driver to blind security tools before further compromise," Huntress researcher Anna Pham said in a report published last week. The cybersecurity vendor said it identified over 60 instances of malicious ScreenConnect sessions tied to the campaign. The attack chain stands out for a couple of reasons. Unlike recent campaigns highlighted by Microsoft that leverage tax-themed lures, the newly flagged activity employs commercial cloaking services to avoid detection by security scanners and abuses a ...