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Tag: signals

Taiwan High-Speed Rail Emergency Braking Hack: How a Student Stopped the Trains and Exposed a Major Security Gap

Taiwan high‑speed rail was disrupted after a 23‑year‑old student spoofed signals and triggered an emergency alarm, stopping four trains for nearly an hour. Taiwan high‑speed rail system, one of the most important pieces of national infrastructure, was thrown into chaos during the Qingming Festival holiday when several trains suddenly came to an unexpected halt. Experts…

MicroStealer Analysis: A Fast-Spreading Infostealer with Limited Detection 

Security teams depend on early signals to spot and contain new threats. But what happens when a fully capable infostealer spreads while traditional detections stay limited?  In recent investigations, ANY.RUN researchers observed MicroStealer in 40+ sandbox sessions in less than a month, despite low public visibility. Early activity points to distribution through compromised or impersonated accounts,…

GUEST ESSAY: Real cyber risks arise when small flaws combine and alerts are viewed in isolation

Security teams are drowning in signals. Alerts fire. Logs accumulate. Dashboards light up. Yet breaches still unfold quietly, often through a series of low-level actions that never trigger a single catastrophic alarm. Related: How ‘observability’ drives security Attackers do not rely on one silver bullet. They move incrementally. They probe. They chain together small weaknesses…

Moonrise RAT: A New Low-Detection Threat with High-Cost Consequences

Security professionals rely on early detection signals to prioritize and contain incidents. But what happens when a fully capable RAT generates none?  In a recent investigation, the ANY.RUN experts uncovered a new Go-based remote access trojan we named Moonrise. At the time of analysis, it wasn’t detected on VirusTotal and had no vendor signatures tied to it.  That’s the problem teams can’t ignore: credential theft, remote command execution, and persistence…

ThreatsDay Bulletin: Codespaces RCE, AsyncRAT C2, BYOVD Abuse, AI Cloud Intrusions & 15+ Stories

This week didn’t produce one big headline. It produced many small signals — the kind that quietly shape what attacks will look like next. Researchers tracked intrusions that start in ordinary places: developer workflows, remote tools, cloud access, identity paths, and even routine user actions. Nothing looked dramatic on the surface. That’s the point. Entry…