Most commonly used methods of Cyber-Attack

1. Spear-phishing attack: By email to install malware

2. Zero-day Exploits: Security hole unknown to vendor during product release.

3. Customized Malware: Malicious software that avoids the detection by traditional security technologies

4. Drive-by-Download: Infects the computer while visiting website running malicious code

5. Social Engineering: By manipulating people