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[Speaker Announcement] PKT Intern to Present at BSides Tokyo 2026 — Empirical Research into VirusTotal’s Detection Blind SpotsNew!!
We are pleased to announce that one of our interns has been selected as a speaker for BSides Tokyo 2026, which will be held on Saturday, May 16, 2026! The presentation titles are as follows. This is an ambitious research paper that directly challenges the long-held “unspoken assumption” regarding VirusTotal's role in the security industry, […]
Our engineers have discovered a vulnerability (CVE-2026-28704) in JPCERT/CC’s “EmoCheck” tool!
Recently, one of our engineers discovered a vulnerability in “EmoCheck,” a tool provided by JPCERT/CC, a core cybersecurity organization in Japan. Following a report to the IPA, the vulnerability was officially published in JVN (Japan Vulnerability Notes). In this article, we’ll provide a clear overview of this vulnerability, explain how we discovered it, and discuss […]
Our engineers have discovered a Use-After-Free vulnerability in libpng (CVE-2026-33416)!
One of our engineers recently discovered a vulnerability in the image processing library libpng, and a security advisory has been published.The summary of this vulnerability is as follows: This vulnerability is classified as a “Use-After-Free” vulnerability; processing a specially crafted PNG image could lead to information disclosure or arbitrary code execution.libpng is a widely used […]