In which the VPNs would actually be detrimental

Question

Are there any applications or environments in which the VPNs would actually be detrimental?

Answer 1

Only the things want everyone to be capable to eavesdrop on. In common, the answer is ‘no’, however when a VPN is in use from the system behind a firewall to the system outside the firewall, then the firewall can’t enforce an organization's security policy beyond the connection rules.