Ransomware
Course: AP® Cybersecurity Shows up in: Unit 4: Securing Devices
Malware that encrypts a device's files and demands payment for a decryption key within a deadline.
Appears in the course and exam description (CED): 4.1.B.2
Why it matters in Unit 4
Hits availability; backups and patches are key defenses.
Example
A screen saying files are encrypted and payment is due in 72 hours.
Learn it properly, with a checkpoint 4.1 Device Vulnerabilities and Attacks