Security engineer who reviews and hardens MCP servers and AI agents, builds security automation, and writes it up. PANDI .id Academy trainer, Indonesia.https://www.kielltampubolon.id/enhttps://www.kielltampubolon.id/writing/dari-pelatih-keamanan-dns-ke-fellow-icann87-apa-yang-dicari-insinyur-keamanan-siber-di-bali/https://www.kielltampubolon.id/writing/dari-pelatih-keamanan-dns-ke-fellow-icann87-apa-yang-dicari-insinyur-keamanan-siber-di-bali/Seorang security engineer dan trainer .id Academy PANDI berangkat ke ICANN87 di Bali. Ini yang mau aku pelajari soal DNS abuse, DNSSEC, dan AI agent.Thu, 15 Oct 2026 00:00:00 GMTinternet-governancedns-securityhttps://www.kielltampubolon.id/writing/from-dns-security-trainer-to-icann87-fellow-what-a-cybersecurity-engineer-looks-for-in-bali/https://www.kielltampubolon.id/writing/from-dns-security-trainer-to-icann87-fellow-what-a-cybersecurity-engineer-looks-for-in-bali/A security engineer and PANDI .id Academy trainer heading to ICANN87 in Bali, and what I want to learn about DNS abuse, DNSSEC and AI agents.Thu, 15 Oct 2026 00:00:00 GMTinternet-governancedns-securityhttps://www.kielltampubolon.id/writing/responsible-open-source-engineering-ethics/https://www.kielltampubolon.id/writing/responsible-open-source-engineering-ethics/What I learned auditing 25+ Tier-1 open-source infrastructure repos, and why I closed 25 automated pull requests instead of shipping them.Tue, 28 Jul 2026 00:00:00 GMTopen-sourceengineering-practicehttps://www.kielltampubolon.id/writing/entra-id-identity-audit-automation/https://www.kielltampubolon.id/writing/entra-id-identity-audit-automation/Notes on building an Entra ID account lifecycle and privilege audit that cross-references onboarding/offboarding tickets and verifies admin role boundaries.Tue, 21 Jul 2026 00:00:00 GMTidentitysecurity-automationhttps://www.kielltampubolon.id/writing/automated-phishing-triage-header-analysis/https://www.kielltampubolon.id/writing/automated-phishing-triage-header-analysis/How I automated phishing triage using raw .eml/.msg extraction, SPF/DKIM/DMARC header validation, and a KnowBe4 PAB/PhishER webhook pipeline.Tue, 14 Jul 2026 00:00:00 GMTemail-securitysecurity-automation