Security News

Who is the Kimwolf Botmaster “Dort”?

In early January 2026, KrebsOnSecurity revealed how a security researcher disclosed a vulnerability that was used to assemble Kimwolf, the world's largest and most disruptive botnet. Since then, the person in control of Kimwolf -- who goes by the handle "Dort" -- has coordinated a barrage of distributed denial-of-service (DDoS), doxing and email flooding attacks against the researcher and this author, and more recently caused a SWAT team to be sent to the researcher's home. This post examines what is knowable about Dort based on public information.

Thousands of Public Google Cloud API Keys Exposed with Gemini Access After API Enablement

New research has found that Google Cloud API keys, typically designated as project identifiers for billing purposes, could be abused to authenticate to sensitive Gemini endpoints and access private data. The findings come from Truffle Security, which discovered nearly 3,000 Google API keys (identified by the prefix "AIza") embedded in client-side code to provide Google-related services like

Pentagon Designates Anthropic Supply Chain Risk Over AI Military Dispute

Anthropic on Friday hit back after U.S. Secretary of Defense Pete Hegseth directed the Pentagon to designate the artificial intelligence (AI) upstart as a "supply chain risk." "This action follows months of negotiations that reached an impasse over two exceptions we requested to the lawful use of our AI model, Claude: the mass domestic surveillance of Americans and fully autonomous weapons," the

Life Mirrors Art: Ransomware Hits Hospitals on TV & IRL

HBO's "The Pitt" is showing audiences what a real Mississippi healthcare system is going through this week, thanks to a ransomware attack.

Cities Hosting Major Events Need More Focus on Wireless, Drone Defense

Major events like the FIFA World Cup need to look beyond traditional physical and cyber security to active and passive wireless threats, say experts.

Flaw-Finding AI Assistants Face Criticism for Speed, Accuracy

Using AI to find security vulnerabilities holds significant promise, but the initial products fall short of the needs of enterprises and software developers, say experts.

DoJ Seizes $61 Million in Tether Linked to Pig Butchering Crypto Scams

The U.S. Department of Justice (DoJ) this week announced the seizure of $61 million worth of Tether that were allegedly associated with bogus cryptocurrency schemes known as pig butchering. The confiscated funds were traced to cryptocurrency addresses used for the laundering of criminally derived proceeds stolen from victims of cryptocurrency investment scams, the department added. "Criminal

900+ Sangoma FreePBX Instances Compromised in Ongoing Web Shell Attacks

The Shadowserver Foundation has revealed that over 900 Sangoma FreePBX instances still remain infected with web shells as part of attacks that exploited a command injection vulnerability starting in December 2025. Of these, 401 instances are located in the U.S., followed by 51 in Brazil, 43 in Canada, 40 in Germany, and 36 in France. The non-profit entity said the compromises are likely

The Case for Why Better Breach Transparency Matters

It's become a standard practice for organizations to disclose the bare minimum about a data breach, or worse — not disclose the incident at all.

Malicious Go Crypto Module Steals Passwords, Deploys Rekoobe Backdoor

Cybersecurity researchers have disclosed details of a malicious Go module that's designed to harvest passwords, create persistent access via SSH, and deliver a Linux backdoor named Rekoobe. The Go module, github[.]com/xinfeisoft/crypto, impersonates the legitimate "golang.org/x/crypto" codebase, but injects malicious code that's responsible for exfiltrating secrets entered via terminal password

Claude Code Security Shows Promise, Not Perfection

Claude Code's introduction rippled across the stock market, but researchers and analysts say its impact was overstated, as they peel back the layers.

ScarCruft Uses Zoho WorkDrive and USB Malware to Breach Air-Gapped Networks

The North Korean threat actor known as ScarCruft has been attributed to a fresh set of tools, including a backdoor that uses Zoho WorkDrive for command-and-control (C2) communications to fetch more payloads and an implant that uses removable media to relay commands and breach air-gapped networks. The campaign, codenamed Ruby Jumper by Zscaler ThreatLabz, involves the deployment of malware

Fake Fedex Email Delivers Donuts!, (Fri, Feb 27th)

It&#x27s Friday, let&#x27s have a look at another simple piece of malware to close a busy week! I received a Fedex notification about a delivery. Usually, such emails are simple phishing attacks that redirect you to a fake login page to collect your credentials. Here, it was a bit different:

Trojanized Gaming Tools Spread Java-Based RAT via Browser and Chat Platforms

Threat actors are luring unsuspecting users into running trojanized gaming utilities that are distributed via browsers and chat platforms to distribute a remote access trojan (RAT). "A malicious downloader staged a portable Java runtime and executed a malicious Java archive (JAR) file named jd-gui.jar," the Microsoft Threat Intelligence team said in a post on X. "This downloader used PowerShell

Meta Files Lawsuits Against Brazil, China, Vietnam Advertisers Over Celeb-Bait Scams

Meta on Thursday said it's taking legal action to tackle scams on its platforms by filing lawsuits against what it calls deceptive advertisers based in Brazil, China, and Vietnam. As part of the effort, the advertisers' methods of payment have been suspended, related accounts have been disabled, and the website domain names used to pull off the scams have been blocked. Concurrently, the social

ISC Stormcast For Friday, February 27th, 2026 https://isc.sans.edu/podcastdetail/9828, (Fri, Feb 27th)

Marquis v. SonicWall Lawsuit Ups the Breach Blame Game

When a company gets breached through a third-party security vendor, who should bear responsibility? For one FinTech company, the answer is the firewall provider.

Cisco SD-WAN Zero-Day Under Exploitation for 3 Years

The maximum-severity vulnerability CVE-2026-20127 was exploited by an unknown but sophisticated threat actor who left very little evidence behind.

Aeternum C2 Botnet Stores Encrypted Commands on Polygon Blockchain to Evade Takedown

Cybersecurity researchers have disclosed details of a new botnet loader called Aeternum C2 that uses a blockchain-based command-and-control (C2) infrastructure to make it resilient to takedown efforts. "Instead of relying on traditional servers or domains for command-and-control, Aeternum stores its instructions on the public Polygon blockchain," Qrator Labs said in a report shared with The

UAT-10027 Targets U.S. Education and Healthcare with Dohdoor Backdoor

A previously undocumented threat activity cluster has been attributed to an ongoing malicious campaign targeting education and healthcare sectors in the U.S. since at least December 2025. The campaign is being tracked by Cisco Talos under the moniker UAT-10027. The end goal of the attacks is to deliver a never-before-seen backdoor codenamed Dohdoor. "Dohdoor utilizes the DNS-over-HTTPS (DoH)