What is Ransomware? | UpGuard

This document is an introductory guide to ransomware that explains what ransomware is, common infection vectors (phishing, malvertising, exploiting vulnerabilities), the main ransomware variants (scareware, screen lockers, encryption, mobile), notable examples (WannaCry, Ryuk, SamSam, CryptoLocker, etc.), and recommended prevention, backup, and remediation practices; it also describes how the UpGuard platform can help assess and reduce ransomware risk.