WireGuard has been in the Linux kernel since March 2020, Tailscale crossed $100M ARR in early 2026, and Headscale has passed 42,000 GitHub stars. If you self-host more than two services, a free or self-controlled mesh VPN transforms remote access without a single firewall rule.

NIST published SP 800-207 in August 2020, the Biden administration mandated Zero Trust for all US federal agencies in January 2022, and Google has been running BeyondCorp internally since 2011 without a VPN. If your network security still relies on the assumption that a packet is clean because it originated on the LAN, you have already lost.