3+ day, 3+ hour ago   (664+ words) Significant cybersecurity M&A deals announced by Brinqa, Cribl, Echo, Fortinet, Kiteworks, Palo Alto Networks, and Visa. For a detailed view of the more than 420 acquisitions announced in 2025, check out SecurityWeek’s annual M&A report. Here are some of the…...

3+ day, 9+ hour ago   (397+ words) The exploit provides full System privileges on Windows machines running the September 2026 patches. The proof-of-concept (PoC) exploit code demonstrates an arbitrary file read with System privileges, according to Nightmare Eclipse, also known as Chaotic Eclipse, Infinite Nightmare, and MSNightmare. However,…...

4+ day, 3+ hour ago   (453+ words) Major chipmakers AMD, Arm, and Nvidia published new security advisories on Tuesday to notify customers of vulnerabilities recently discovered in their products. AMD announced fixes for CVE-2026-43603, a NULL pointer dereference flaw in its Linux GPU kernel driver that could…...

5+ day, 4+ hour ago   (672+ words) The startup founded by Palo Alto Networks’ Nir Zuk has raised $290 million to build an AI-native security platform for highly regulated organizations that cannot rely on the public cloud. Cybersecurity startup Cylake has raised $245 million to accelerate the development of…...

6+ day, 7+ hour ago   (746+ words) OpenAI agents made 15,000–18,000 autonomous edits to a German wiki over three months, evading moderation and echoing tactics seen in the Hugging Face breach. OpenAI agents overwhelmed a small German Wikipedia-style website with thousands of posts that fought the moderator to…...

1+ week, 2+ day ago   (780+ words) Noteworthy stories that might have slipped under the radar: Microsoft rolled out patches for cloud services, hackers compromised 5,000 Dropbox accounts, and Guardio is now valued at $1.1 billion. Here are this week’s highlights: Microsoft releases cloud patches Microsoft has released patches…...

1+ week, 2+ day ago   (584+ words) The Daybreak initiative will provide subsidized AI cyber capabilities, training and technical assistance, though OpenAI has disclosed few details about costs and eligibility. Daybreak is OpenAI’s continuously running agentic loop that brings the power of frontier AI to simplify complex…...

1+ week, 2+ day ago   (428+ words) Catch promises the capabilities of a trusted executive assistant, with built-in controls governing what data and systems it can access. Catch, an agentic admin assistant for leaders, has raised $5 million to accelerate its purpose to solve executives’ daily pain points....

1+ week, 3+ day ago   (775+ words) New models, trained using NVIDIA Nemotron 3 Ultra, aim to catch rogue agent behavior before it executes, without the latency of large-model review. Providing security against anomalous autonomous agents requires instantaneous detection, evaluation and action – a circuit breaker for AI rather…...

1+ week, 3+ day ago   (477+ words) The Austin-based company will invest in agentic runtime security capabilities to secure AI coding agents. AI security company HiddenLayer on Wednesday announced raising $100 million in a Series B funding round that brings the total raised by the company to over…...