I work directly on live Linux server incidents — from compromised systems and malware infections to high CPU usage, service crashes, and production outages. My focus is fast diagnosis, controlled recovery, and long-term hardening.
System Design
The Few Seconds the User Sees, the Millions of Transactions They Don't Every day, millions of people order food, stream videos, send messages, book rides, make payments, and shop online. From the user's perspective, each action takes a few seconds. Click a button, get a response,
Cloud Security
You Don't Have a Tooling Problem. You Have a Mapping Problem. Most cloud security teams already own too many tools. Yet misconfigured storage, excessive permissions, vulnerable workloads, and exposed Kubernetes services still create exploitable attack paths. The problem isn't a lack of tooling. It's
DevOps
The Default That Caused Years of Supply Chain Attacks Is Finally Changing With npm v12, dependency preinstall, install, and postinstall scripts will no longer execute automatically during package installation. Script execution will require explicit approval through new controls like npm approve-scripts. The change is expected to arrive in July
AI Security
A Model Vanished for Everyone, in Hours On the evening of June 12, 2026, Anthropic disabled access to two of its newest models—Claude Fable 5 and Claude Mythos 5—for every customer worldwide. Not because of an outage or a self-discovered flaw. To comply with a US government
System Design
The Scaling Problem Nobody Sees Coming Your first scaling problem rarely arrives with a bang. For a while, everything works: pages load fast, the database barely breaks a sweat, and the team ships features without thinking about infrastructure. Then traffic climbs. A campaign over-performs. A marketplace onboards a popular
Linux
The 2 AM Debugging Mystery: df Says 80% Full, du Says 50% You're debugging a full disk alert. The df command shows red. The du / output looks totally fine. You run both commands three times, thinking you misread something. The numbers don't match. One of them
DevSecOps
Controls Without Context Don't Work Container security programs lose effectiveness when controls are implemented without connecting them to specific attack outcomes. Running a container as root increases the impact of a container escape. Non-root execution reduces what an attacker can do with that foothold. The control only
DevSecOps
The Detection Gap: Transparency Matters Commercial endpoint detection and response (EDR) tools are black boxes. You buy a binary, run it with elevated privileges, and trust it works. You don't know what rules it's actually using. You don't know if detections are accurate or
Threat Intel
The Exploit That Shouldn't Exist: Microsoft Defender's Race Condition A Windows zero-day dubbed RoguePlanet has been released publicly. It exploits a race condition in Microsoft Defender to escalate privileges from a standard user to SYSTEM level. The exploit was released by Nightmare Eclipse (also known
Threat Intel
Persistence: The Attacker's Real Goal A Linux server gets cleaned up after an intrusion. The suspicious process is terminated. Credentials are rotated. The system is rebooted. Everything seems secure. A few hours later, the same outbound connection appears again. That's persistence. The attacker no longer needs
Threat Intel
A Mail Server Vulnerability With No Workaround The Exim mail server project announced a critical use-after-free vulnerability in its GnuTLS backend. All versions from 4.97 through 4.99.2 are affected. The only fix is upgrading to 4.99.3. What makes this vulnerability particularly dangerous: triggering
Threat Intel
18 Vulnerabilities, One High-Severity: And AI Found Some OpenSSL released patches for 18 vulnerabilities in June 2026. That alone would be significant. But one detail stands out: several were discovered with AI assistance, including the highest-severity flaw. CVE-2026-45447 is a heap user-after-free bug in