An extortionist in cybersecurity refers to an individual or group that uses threats, intimidation, or coercion to force victims into giving up money, sensitive information, or access to systems. Common tactics include ransomware attacks, where files are encrypted and a ransom is demanded, or threatening to release stolen data unless payment is made. Extortionists may target individuals, businesses, or organizations, exploiting vulnerabilities to maximize their leverage. Their actions are illegal and can cause significant financial and reputational damage to victims. Preventive measures include robust security practices, employee awareness, and regular system backups to mitigate the impact of extortion attempts.