Why the service is called Oak

Oak is the tree, not a security grade. The name is a reminder of something that lasts and shelters what is under it. That is the extent of the metaphor.

Oaks matter in woodland ecology. A mature oak supports a large number of insects, birds, and fungi, and its acorns feed other animals. Organisations such as the Woodland Trust document that role in the UK: Woodland Trust, Oak.

Oak VPN does not claim that using the service plants a tree, unless a current offer on the site says so. The product is a paid WireGuard VPN operated by Saoir Ltd in the United Kingdom.