ZTNA, or Zero Trust Network Access, applies the Zero Trust principle to how people reach your applications. Unlike a traditional VPN, which lets a user into the whole network, ZTNA grants access only to the specific application they are authorized to use.
Because such access is granted one application at a time after verifying the person and their device, a stolen or misused login cannot roam the entire network. This limits the damage an attacker can do even if they get in, and it fits well with remote workers and cloud applications.
