SSL (also known as transport layer security [TLS]) is the standard network protection technology used to symbolise a secure connection in a user's internet browser (the padlock). Network data protection standards SSL (secure sockets layer) and Layer 2 VPN (virtue layer VPN) have become common worldwide thanks to their recognisable sign. They are utilised by many businesses that desire to ensure their safety and security as well as their internal networks, backbone networks, and virtual private networks (VPNs).

Network-level data encryption is a fairly blunt weapon at the low level. Information flowing over the network is almost completely oblivious to the value of the data, and this context is almost always set to protect everything. Even when the “protect everything” strategy is used, network traffic patterns can provide valuable information to potential attackers.

Network data encryption is only part of a complete data security strategy. An organisation must also consider the risks associated with data generation and consumption to ensure the best possible result. Driving on the freeway at high speed is much easier than in a parking lot or private garage!