How to Prevent Ransomware Attacks: Top 10 Best Practices in 2023 | UpGuard

This article explains ransomware and its main variants, highlights phishing and outdated systems as common infection vectors (with a brief mention of WannaCry), and provides a practical, prioritized checklist for prevention and response. Recommended defenses include regular backups (3-2-1 with immutable storage), timely patching, AV/firewalls, network segmentation, email authentication (SPF/DKIM/DMARC), application whitelisting, EPP/EDR, least-privilege with MFA/zero trust, ongoing security testing, and user awareness training, plus immediate post-attack actions (isolate systems, identify source, report, and avoid paying ransoms).