Question: what are the major risks in network security?
Answer: Viruses and Worms. Computer viruses and worms are destructive malicious programs designed to infect core systems, destroying essential system data and making networks inoperable. ...  Drive-by Download Attacks. ...  Botnets. ...  Phishing Attacks. ...  Exploit Kits. ...  DDoS (Distributed Denial of Service) ...  Ransomware. ...  Cryptojacking.