Tech Sentinel
Tech Sentinel

Cybersecurity news, daily — breaches, CVEs, ransomware, threat actors, and the patches that matter.

Daily cybersecurity news with a working-engineer's filter. Breach disclosures, CVEs that will actually get exploited, ransomware activity, threat actor profiles, and the operational patches that move the needle — sourced and dated.

Posts
11
Topics
5
Updated
May 12
Lead dispatch

Most Remediation Programs Never Confirm the Fix Actually Worked

Mandiant M-Trends 2026 puts mean time to exploit at negative seven days while Verizon's 2025 DBIR finds edge devices take 32 days to remediate. The deeper problem: closing tickets is not the same as closing exposures.

May 12, 2026
vulnerability

LLM Security Risks: The Top Threats Facing Large Language Models in 2025

Prompt injection, data poisoning, excessive agency, and system prompt leakage — a practitioner breakdown of the LLM security risks catalogued by OWASP and NIST for 2025 deployments.

threat-intel

How AI Fraud Detection Works: Techniques, Trade-offs, and What's Next

AI fraud detection systems catch 70–90% more suspicious activity than rules-based methods. Here's how machine learning, graph neural networks, and behavioral analysis work — and where the structural gaps remain.

threat-intel

RubyGems Suspends New Signups After Hundreds of Malicious Packages Are Uploaded

RubyGems has temporarily disabled new account registrations after attackers uploaded hundreds of malicious packages and launched a DDoS campaign against the popular Ruby package registry.

Past dispatches

Machine Learning Security: Key Threats, Attack Types, and Defenses Generative AI Risks: A Practitioner's Guide to What Actually Matters ChatGPT Security: Key Risks, Real Vulnerabilities, and Enterprise Controls That Work AI Agents Are Rewriting the Threat Model, and Most Security Teams Aren't Ready Cybersecurity Burnout Is a Structural Problem, Not a Personal One AI Assistants Are Rewriting the Threat Model, Not Just the Workflow What this site is for
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