Much of the trouble with traditional network security lies in inefficient and insecure VPN infrastructure, because:
VPNs cannot prevent lateral threat movement. Even though VPNs can keep data secure through encrypted tunnels on a smaller scale, they do not prevent further access to an organization’s network at large if an endpoint has been compromised.
VPNs don’t scale well. Hardware-based VPNs need to be manually configured, and their bandwidth caps tend to necessitate redundant deployments. Software-based VPNs need to be deployed on every user device, limiting the ways users can work.
VPNs don’t do zero trust. After authentication through a VPN, a user is on the network. From there, a hacker or malicious insider can move laterally to access sensitive information or exploit vulnerabilities that aren’t protected from the inside.
Even the best VPNs aren’t able to secure all online activity, as some of their encryption protocols may not be able to stand up to today’s advanced threats. Read more.