Ransomware has evolved from a low-grade nuisance to a sophisticated multimillion-dollar criminal business that now targets both individuals and corporations. It is a criminal business model that uses malicious software to cryptographically hold your personal data hostage.

While an increasingly urgent challenge, ransomware can be prevented through proper training, the right risk management processes, and advanced endpoint technology. Unit 42, the Palo Alto Networks® threat intelligence team, recently released an in-depth report on ransomware history, evolution and effective defenses.