FedLink is a connectivity solution for enabling secure communications between Australian Government agencies across public infrastructure. It is a dynamic encryption mechanism which provides secure and trusted communications across the Internet. This allows the Commonwealth, State and Territory Government jurisdictions to transmit and receive information securely up to the security classification of “PROTECTED”.

On 15 April 2004, the Australian Government directed all Financial Management and Accountability (FMA) agencies to protect their data transmissions by using FedLink or an equivalent protection system.

GovLink utilises authenticated, encrypted links between participating entities to create a secure Virtual Private Network (VPN) across the Internet. An accredited certificate authority (CA) provides digital certificates and the public key infrastructure (PKI) necessary for a scalable and manageable VPN. GovLink was designed to allow government entities to securely share information conveniently and cost effectively.