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Help Net Security

Ukrainian ransomware hacker sentenced, $11 million reward offered for co-conspirator

A Ukrainian national who participated in ransomware attacks targeting hospitals, government entities, law firms, and other businesses was sentenced to five years and 10 months in prison. Artem Stryzhak, 36, pleaded guilty in December 2025 to two counts of conspiracy to commit fraud, extortion, and related activity in connection with computers. He was arrested in Spain in June 2024 and extradited to the United States…

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CSO Online

Fake ChatGPT, Claude apps spread malware via signed AI binaries

Attackers are distributing malware through fake ChatGPT and Claude desktop applications, using legitimate, digitally signed executables from OpenAI and Anthropic to load malicious code onto victims’ Windows systems, according to Check Point Research. The campaign, tracked as Yoba, uses fake GitHub repositories and websites promoting purported AI applications, including “GPT-5.6 Sol,” “GPT-6 Astra” and “Claude Opus.”…

بدافزار و آلودگی امنیت هوش مصنوعی هوش مصنوعی و یادگیری ماشین
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Help Net Security

Tailscale fixes SSH flaws allowing lateral movement within tailnets

Tailscale, the company behind the popular software-defined mesh networking and connectivity platform of the same name, has shipped fixes for several vulnerabilities, including some in Tailscale SSH that could let an attacker who already had access to a device in the network gain more privileges on other machines that are part of it. “Based on our investigation, an attacker could reach only machines the tailnet policy…

آسیب‌پذیری و روز صفر شبکه و اینترنت
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CSO Online

Trusting Unsloth’s trust setting could mean executing malicious code

AI developers may have a security setting enabled and still end up running attacker-controlled code. Pillar Security has disclosed a high-severity vulnerability in Unsloth’s model loader that could allow arbitrary Python code execution when processing a maliciously crafted model configuration. Tracked as CVE-2026-93348, the vulnerability carries a CVSS score of 8.6. Setting trust_remote_code=False does not prevent ex…

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Help Net Security

FBI seizes Virtualine, bulletproof hosting provider that promised to shield criminals from police

The FBI has seized virtualine.net, the domain of a bulletproof hosting provider that laundered money for its criminal customers and kept a forum trading in child sexual abuse material online despite repeated warnings from police and child protection groups. Seizure notice (Source: US Department of Justice) The FBI Washington Field Office led the investigation, dubbed Operation Omegaline, with help from Germany’s Poli…

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