SDP vs. Zero Trust vs. VPN: Comparing Network Security Technology

SDPs, zero trust, and VPNs are three methods of securing an enterprise. VPNs have historically served as businesses’ main defense against external threats by encrypting tunnels between networks. But SDPs and zero trust networks are increasing in popularity, too. SDPs are networks that sit atop other networks to hide them from attackers or unauthorized users, acting like a cloak of invisibility to prevent network-based attacks. Zero-trust networks assume any user or device cannot be trusted, restricting every user’s access to network resources -- regardless of identity or network access history.