What Are Security Experts Saying About OpenAI’s GPT-5.4-Cyber?
OpenAI has launched GPT-5.4-Cyber, a model optimized for defensive cybersecurity usage.
OpenAI Widens Access to Cybersecurity Model After Anthropic’s Mythos Reveal
GPT‑5.4‑Cyber is a model fine-tuned for defenders, lowering boundaries for legitimate cybersecurity work. The post OpenAI Widens Access to Cybersecurity Model After Anthropic’s Mythos Reveal appeared first on SecurityWeek.
ThreatsDay Bulletin: Defender 0-Day, SonicWall Brute-Force, 17-Year-Old Excel RCE and 15 More Stories
You know that feeling when you open your feed on a Thursday morning and it’s just… a lot? Yeah. This week delivered. We’ve got hackers getting creative in ways that are almost impressive if you ignore the whole “crime” part, ancient vulnerabilities somehow still ruining people’s days, and enough supply chain drama toRead More »ThreatsDay Bulletin: Defender 0-Day, SonicWall Brute-Force, 17-Year-Old Excel RCE and 15 More Stories
Data Breach at Tennessee Hospital Affects 337,000
Cookeville Regional Medical Center was targeted last year by the Rhysida ransomware group, which stole 500GB of data. The post Data Breach at Tennessee Hospital Affects 337,000 appeared first on SecurityWeek.
Artemis Emerges From Stealth With $70 Million in Funding
The startup is leveraging AI to prevent AI-powered attacks across applications, users, machines, and cloud workloads. The post Artemis Emerges From Stealth With $70 Million in Funding appeared first on SecurityWeek.
![[Webinar] Find and Eliminate Orphaned Non-Human Identities in Your Environment](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6vJpO9kksCQDpSksNkqDFNUCbXD70dMGYqI6P9S_XPMY5d8BR8PVdrsVQP1ZJO_-nzL6eQShM3Cap9heQ5kAglsPjfxwIcXPSsf_cfgUVnGQ2XzIWVOuo7JhxMjnHYDN6r9KlQ6LqZJisRZkjatnWChuzUkSlXRa1hFseUPq28PZ5gjGR7L2WzTFdZ3fM/s1600/ghost.jpg)
[Webinar] Find and Eliminate Orphaned Non-Human Identities in Your Environment
In 2024, compromised service accounts and forgotten API keys were behind 68% of cloud breaches. Not phishing. Not weak passwords. Unmanaged non-human identities that nobody was watching. For every employee in your org, there are 40 to 50 automated credentials: service accounts, API tokens, AI agent connections, andOAuth grants. When projects end or employees leave,Read More »[Webinar] Find and Eliminate Orphaned Non-Human Identities in Your Environment
Splunk Enterprise Update Patches Code Execution Vulnerability
The flaw allows low-privileged users to upload files to a temporary directory to achieve remote code execution. The post Splunk Enterprise Update Patches Code Execution Vulnerability appeared first on SecurityWeek.
Cisco Patches Four Critical Identity Services, Webex Flaws Enabling Code Execution
Cisco has announced patches to address four critical security flaws impacting Identity Services and Webex Services that could result in arbitrary code execution and allow an attacker to impersonate any user within the service. The details of the vulnerabilities are below – CVE-2026-20184 (CVSS score: 9.8) – An improper certificate validation inRead More »Cisco Patches Four Critical Identity Services, Webex Flaws Enabling Code Execution
Microsoft Paid Out $2.3 Million at Zero Day Quest 2026 Hacking Contest
Researchers found more than 80 high-impact cloud and AI vulnerabilities during the event, which had a $5 million prize pool. The post Microsoft Paid Out $2.3 Million at Zero Day Quest 2026 Hacking Contest appeared first on SecurityWeek.
NIST Prioritizes NVD Enrichment for CVEs in CISA KEV, Critical Software
To optimize management of CVE volume, entries that do not meet specific criteria will not be automatically enriched. The post NIST Prioritizes NVD Enrichment for CVEs in CISA KEV, Critical Software appeared first on SecurityWeek.