Defense-in-depth definition
Using multiple systems to resist attackers. For example, if an external firewall is breached, an internal intrusion detection system can sound an alarm. If systems are breached and data can be stolen, keeping all vital records encrypted on disk and encrypted during transmission prevents attackers from using it even if they get it.
Advertisement
Other Word Forms
Noun
Singular:
defense-in-depth
Plural:
defenses in depth