In short
Malware is malicious software, including viruses, which attach to files and spread when they run, worms, which spread on their own across networks, and trojans, which pose as legitimate software.
Key takeaways
- Other types include spyware, keyloggers, rootkits and ransomware.
- Defenses include endpoint protection, patching, least privilege and user awareness training.
- Email attachments and links are the most common way in.
Where it's tested
ISC: Information Security Fundamentals — study notes, a five-minute revision sheet and practice questions.
Practise: 3 questions
Question 1 of 3 · 0 answered
To send a confidential message that only the intended recipient can read, which key should the sender use to encrypt it?