Oracle Cloud's secure VPN service that creates encrypted network tunnels over the internet. Like sending mail in a locked, tamper-proof box - even if someone intercepts it, they can't read what's inside.
A government agency uses IPSec Connection to securely transmit classified data between their headquarters and Oracle Cloud infrastructure.
All four providers offer managed IPsec site-to-site VPN services that create encrypted tunnels over the public internet between an on-premises network (or another cloud) and a cloud virtual network.