Posts

Preface: The Crack Between Philosophy and Execution First half of 202x. When the group’s penetration test report stated, “SQL Injection possible in WAF-unprotected section,” the CISO was silent for a while. The report was blunt, the attack was classic, and there was no defense. “Was I wrong? Or did they misunderstand my intention…?” The CISO was a leader of strong conviction. He believed that with a strategy of “IPS + security by design,” it was possible to build a system robust enough to forgo WAF deployment. In fact, for years, this strategy contributed to the organization’s threat detection and incident prevention. ...

No Silver Bullet: Folklore & Modern Meaning The phrase “no silver bullet” originated in European folklore, where silver bullets were believed to be uniquely effective against supernatural creatures like werewolves or vampires. The earliest documented use appears in Walter Scott’s 1816 Tales of My Landlord, and historical cases such as the 1765 Beast of Gévaudan reference silver bullets as a last resort against mysterious threats. Over time, the expression evolved: today, “no silver bullet” means there is no single, simple solution to complex problems—a message popularized in software engineering by Fred Brooks’ 1986 essay. This post applies that lesson to SSRF defense: beware of one-size-fits-all fixes, and look deeper than folklore or quick patches. ...

Analysis of potential Remote Code Execution vulnerability in OpenStack Nova’s exception serialization mechanism, including multiple PoC scenarios and defense recommendations.

This post analyzes the evolution of endpoint evasion techniques from 2020 to 2025. It covers BYOI, BYOVD, DLL hijacking, service tampering, and other sophisticated methods attackers use to bypass EDR and AV. Real-world ransomware cases and vendor impact are discussed, along with defensive insights.

Analyzing the threat of Single Points of Failure (SPOF) through historical examples and graph theory, this piece presents a strategic approach to identifying and mitigating structural weaknesses in cybersecurity infrastructures.

This guide analyzes a vulnerability in the Dicer module indirectly affecting Multer, and provides a practical mitigation strategy. It serves as a real-world example of dealing with unmaintained open source dependencies.

When API access falls short, automation through Gmail and Apps Script becomes essential. Here’s how I used Google Apps Script to collect Snyk vulnerability alerts and patch data automatically.

Can AI achieve enlightenment? This article explores the asymmetric nature of human insight and machine repetition, outlining technical conditions that might allow for a reflective AI—and the philosophical limits it must face.

This article analyzes the rise of backdoors and rootkits exploiting eBPF, the detection challenges they pose, and comprehensively summarizes the latest countermeasures and research trends (2023–2025), including Tracee, LKRG, bpftool, and hypervisor-based auditing.

An in-depth analysis focusing on the 2025 SKT breach, the core security structures of telecom infrastructure, and historical global incidents (Gemalto, APT10, Circles). Also covers subscriber authentication (Ki, SUPI/SUCI) and security differences between 5G SA and NSA.