Enterprise choices for virtual private networks (VPNs) used to be so simple. You had to choose between two protocols and a small number of suppliers. Those days are gone. Thanks to the pandemic, we have more remote workers than ever, and they need more sophisticated protection. And as the war in Ukraine continues, more people are turning to VPNs to get around blocks imposed by Russia and other authoritarian governments,

A VPN is still useful and perhaps essential to a modern mostly remote workplace. In this post for CSO, I describe these scenarios, what security researchers have found about how VPNs leak data or have other privacy issues, and what you should look for if you intend to deploy them across your enterprise.