Network Security

Sentinels League 2026: Live Rankings for the Threat Hunting World Championship

The Threat Hunting World Championship is back — bigger, bolding, and with more on the line than ever. Sentinels League 2026, presented by SentinelOne® in partnership with DropZone AI, Google Cloud, and Mimecast, now is open for entries, and the best threat hunters on the planet are already sharpening their edge. This year’s championship brings […]

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Turn Blind Trust into Verified Control with Prompt Security for Agentic AI

Agentic AI is no longer theoretical. It’s already embedded across enterprises inside developer workflows, SaaS platforms, and operational pipelines. It is executing tasks, chaining actions, and interacting with critical systems at machine speed. What makes this shift different from previous waves of automation is not just capability, it’s autonomy. These systems don’t wait for step-by-step

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Breaking the Black Box: A Case Study in Red-Teaming a Government Education AI

The “black box” assessment represents the most authentic test of an AI system’s security. Unlike white-box testing, where the system prompt and architecture are known, black box red-teaming forces the attacker to rely solely on the system’s outputs to map its internal defense mechanisms. This case study details a recent engagement with “[EduBot]” (pseudonym), a

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SHub Reaper | macOS Stealer Spoofs Apple, Google, and Microsoft in a Single Attack Chain

Infostealers targeting macOS have continued to proliferate over the last two years, with threat actors iterating on successful techniques across related malware families. Researchers at Moonlock, Jamf, and Malwarebytes have previously documented the rise of SHub Stealer, including its use of fake application installers and “ClickFix” social engineering. This week, SentinelOne observed a new SHub

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Living Off the Pipeline: Defending Against CI/CD Subversion

The software supply chain has become one of the most attractive targets for modern adversaries, but the attacks seen in 2025 did not focus solely on poisoning dependencies or hijacking packages. Increasingly, attackers are targeting the infrastructure that powers the software delivery lifecycle itself. Build servers, CI/CD runners, package managers, and developer workstations all sit

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The Good, the Bad and the Ugly in Cybersecurity – Week 20

The Good | Authorities Dismantle Major Dark Web Marketplaces & Arrest Key Admins European authorities dismantled a lucrative, rebooted version of the ‘Crimenetwork’ cybercrime marketplace and arrested its primary administrator in Mallorca, Spain. When German police first disrupted the original platform in late 2024 and apprehended its operator, a 35-year-old suspect allegedly constructed an identical

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The Good, the Bad and the Ugly in Cybersecurity – Week 19

The Good | Courts Sentence Karakurt Ransomware Negotiator & Two DPRK IT Worker Scheme Facilitators Federal authorities have successfully secured a nearly nine-year prison sentence for Deniss Zolotarjovs, a Latvian national extradited to the U.S. for his critical role in the Karakurt extortion syndicate. Operating as a specialized “cold case” negotiator, Zolotarjovs (aka Sforza_cesarini) systematically

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The Good, the Bad and the Ugly in Cybersecurity – Week 18

The Good | Authorities Dismantle State-Backed Espionage & Cybercrime Rings This week, authorities successfully secured the extradition of Xu Zewei, an alleged Chinese Ministry of State Security (MSS) contract hacker, from Italy to the U.S. to face severe federal cyberespionage charges. Operating alongside the Silk Typhoon group, Xu systematically compromised internet-facing systems during a highly

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The Good, the Bad and the Ugly in Cybersecurity – Week 17

The Good | Two Cybercrime Leaders Face Justice for Fraud, Identity Theft & Extortion Tyler Robert Buchanan, a 24-year-old British national believed to be a leader of the UNC3944 cybercrime group, has pleaded guilty in the U.S. to wire fraud and aggravated identity theft. Prosecutors say Buchanan and four accomplices stole at least $8 million

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