Looking back at 2020: A Year in Review

2020 threat roundup: the report highlights three major events—the SolarWinds supply‑chain compromise that enabled stealthy, widespread access to high‑value networks; the rapid rise and professionalization of ransomware (notably double‑extortion techniques used by Maze, Egregor, Conti and others); and exploitation of the Netlogon "ZeroLogon" privilege‑escalation vulnerability (CVE‑2020‑1472) which accelerated ransomware operations—while also noting COVID‑19 themed phishing, sector impacts on healthcare and education, and regional data breaches in Singapore, concluding with basic cyber hygiene recommendations.