A retrospective of the 10 most significant cybersecurity events over the past decade, framed around Huntress's 10th anniversary. Covers NotPetya (2017), the Equifax breach, SolarWinds supply chain attack, Hafnium/Exchange vulnerabilities, Colonial Pipeline ransomware, Log4Shell, MOVEit exploitation, Qakbot takedown, ScreenConnect authentication bypass, and Operation Endgame. Each event is analyzed for its broader lessons around supply chain security, patch management, incident response, and community-driven defense. Huntress highlights its own rapid-response contributions throughout.