Defense in depth¶

"Defense in depth" is a concept that advocates for adding deffense at different levels of a system.

Examples layers and defences¶

Layer	Defense
Technical. System and application	Antivirus, Authentication, Encryption, Hashing passwords, Logging and auditing, Multi-factor authentication, Vulnerability scanners,
Technical. Network	Firewalls, DMZ, VPN
Physical	Biometrics, Data-centric security
Administrative	hiring practices, data handling procedures, security requirements