What is a 'worm' in the context of malware? MCQ with Answer and Explanation

Explanation:
A digital signature provides authentication and integrity verification, ensuring that a message or document comes from the claimed sender and has not been altered.

Explanation:
A DDoS attack uses a network of infected computers (botnet) to flood a target with traffic, overwhelming it and causing a denial of service.

Explanation:
Encryption converts readable data (plaintext) into an unreadable format (ciphertext) using an algorithm and key, ensuring that only authorized parties can access the information.