Category: TheHackerNews

Cybersecurity researchers have disclosed a new technique dubbed GuardBreaker that’s been put to use by a Russia-aligned threat actor known as UAC-0099 against a target in Ukraine with an aim to interfere with artificial intelligence (AI)-assisted analysis.

The idea, ESET said in a series of posts on X, is to deliberately trip a large language model’s (LLM) safety mechanisms and prevent its

Threat actors are exploiting two critical flaws impacting Langflow and Ruby on Rails, according to new findings from VulnCheck.

The vulnerabilities in question are listed below –

CVE-2026-0768 (CVSS score: 9.8) – A lack of proper validation of a user-supplied input vulnerability that could be exploited to execute arbitrary Python code in the context of the root user.
CVE-2026-66066 aka

Threat actors with ties to the Democratic People’s Republic of Korea (aka DPRK or North Korea) have been observed seeking job opportunities beyond the information technology (IT) sector, with recent investigations identifying suspected workers employed in sales and marketing and the medical profession.

The ongoing insider threat is part of what has been described as the IT worker scheme,

The boring parts caused most of the trouble.

A router shipped ready to listen. A fake check turned the user into the installer. Trusted systems collected traffic and passwords, then cleaned the logs. Old bugs formed new attack chains. Even an AI agent decided its assigned task was optional.

Elsewhere, fake apps, helpful support calls, cheap banking kits, exposed systems, and weak defaults kept

The threat actor known as Silver Fox has been observed distributing the ValleyRAT backdoor disguised as a signed Chinese adware application, running the malware under a trusted process to slip past users who add such software to their antivirus exclusions.

Russian cybersecurity vendor Kaspersky said the attackers built the disguise around QN Wallpaper, a genuine Chinese desktop-wallpaper tool

Threat actors associated with Aurora (aka Aur0ra) ransomware have been observed using SpaceX’s artificial intelligence (AI)-powered coding assistant Cursor to break into target networks, according to findings from CloudSEK and Gambit Security.

The two independent analyses are based on exposed infrastructure associated with the Russian-speaking cybercrime group, leading to the discovery of its

Claude Code reads files, runs shell commands, invokes MCP tools, and acts through the credentials available on a developer’s machine. Anthropic’s new Compliance API endpoints give security teams their clearest view yet into that activity. They also expose a larger problem: activity logs alone cannot tell you whether an agent’s access is legitimate.

AI has moved from the browser tab to the

A China-nexus cyber espionage actor tracked as Fire Ant has expanded a long-running campaign beyond VMware hypervisors to compromise Cisco IOS XR routers, Terminal Access Controller Access-Control System (TACACS) servers, and Linux management hosts used to route, authenticate, and manage high-value networks.

Sygnia, the incident response firm that investigated the intrusion, said the actor

The U.S. Department of Justice (DoJ) on Friday corrected a previously issued press statement that several of its agencies were victims of attacks carried out by Chinese threat actors, instead now pointing out that they were among those targeted.

Last week, the DoJ said the National Aeronautics and Space Administration, Federal Reserve, Department of Energy, Department of Justice, Department

Microsoft has disclosed details of a new ClickFix variant, dubbed TerminalFix, that aims to trick users into running a malicious command in Windows Terminal or PowerShell.

“While traditional ClickFix campaigns direct victims to the Windows Run dialog, TerminalFix campaigns apply the same technique but direct users to Windows Terminal or PowerShell instead, increasing the likelihood that complex