2021 in Review (And Other Horror Stories) | Huntress

**Looking Back at 2021:** This blog post summarizes major cybersecurity trends observed in 2021 — a surge in ransomware and zero-day usage, widespread exploitation of public-facing servers, impactful one-to-many supply-chain attacks (e.g., Kaseya, PrintNightmare), increased use of living-off-the-land binaries (LOLBins), recurring issues with incomplete remediation, and widespread alert fatigue — and recommends practical defenses such as protected offsite backups, MFA, network segmentation, improved detection for LOLBin activity, and practiced incident response plans.