Do we need a VPN for remote work?

Only if staff need to reach systems inside your office network. If everything people use is a cloud service, such as e-mail, files and accounting, a VPN adds little: protect those services with multi-factor authentication and managed laptops instead. If there is a file server, an accounting database or a machine in the office that people need from home, then yes: use a VPN or a remote-access gateway rather than opening those services to the internet, and require multi-factor authentication for it. A consumer VPN app that hides your browsing is a different product and does not protect company systems. Whichever you choose, give each person access only to what they need. NetSenX does not provide a VPN. Behind your VPN gateway, a sensor on a SPANSPAN: switch port analyser. A switch setting that sends a copy of network traffic to one port, where a sensor can watch it. or TAPTAP: test access point. A small device that copies the traffic on a network cable for a sensor to watch. port sees what remote devices do on the internal network and flags scanning, lateral movement and beaconing, on every plan.

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