COMPUTER FUNDAMENTALS

Detailed explanation-1: -Worms. A computer worm self-replicates and infects other computers without human intervention. This malware inserts itself in devices via security vulnerabilities or malicious links or files. Once inside, worms look for networked devices to attack.

Detailed explanation-2: -A virus, on the other hand, is a type of malware. Its definition is limited only to programs or code that self-replicates or copies itself in order to spread to other devices or areas of the network. Based on the above definitions, the word malware can be used to refer to any type of virus.

Detailed explanation-3: -Virus. A virus is a piece of code that inserts itself into an application and executes when the app is run. Once inside a network, a virus may be used to steal sensitive data, launch DDoS attacks or conduct ransomware attacks. A virus cannot execute or reproduce unless the app it has infected is running.

Detailed explanation-4: -Trojan malware Also known as a Trojan horse or Trojan horse virus, Trojan malware is often spread via email attachments, website downloads, or direct messages. Similar to viruses, they too require user action to be deployed.