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Infrastructure security insights
Deep dives into DNS hijacking, SSL/TLS, and the attacks that shape how we monitor infrastructure. Looking for how-tos? See the monitoring guides.
2026-08-16
Let's Encrypt Stopped Expiry Email Reminders: SSL Certificate Expiration Email Isn't Enough
In June 2025 Let's Encrypt stopped sending SSL certificate expiration email reminders. Why expiry emails were never enough, and how to monitor certificate expiry, renewal failures, and CT logs yourself.
Read more →2026-06-09
DNS Hijacking: Real-World Attacks and How to Detect Them
From DNSChanger to Sea Turtle: how DNS hijacking works, real-world campaigns that compromised registrars and poisoned caches, and how continuous monitoring catches these attacks before damage spreads.
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