Aubrey Merchant-Dest, federal chief technical officer at software company Symantec, wrote in an opinion piece published Thursday on Fifth Domain that approaching cybersecurity from a client-server perspective is no longer tenable due to the increasing civilian and military use of cloud services and mobile technologies.
In the client-server model, cybersecurity is determined by a single defense perimeter that encloses all valuable assets, like applications and user data.
Merchant-Dest proposed, instead, the adoption of a defense-in-depth or layered defense perspective, which calls for multiple protections to be implemented at the network level as well as at the level of applications and data.
He acknowledged that implementing this kind of cybersecurity system is a complex endeavor but considered it a more adaptable and future-proof approach to cyber defense.