While conducting research on VPNs I did come across where there is a security flaw
in VPNs. As stated by the author Chris Stokel-Walker he states (Stokel-Walker,
2021) "Each user of a VPN is secretly assigned one of around 65,000 possible ports,
the entry, and exit points to the tunnel through which their data is processed. The
first phase of the attack involves sending data packets of different sizes to lots of
ports in an attempt to trick the VPN. If a packet is sent to a user's correct port, the
VPN will forward it on. Otherwise, the packet will be discarded." (Stokel-Walker)
