VPNs With RAM-only ServersFor extra assurance of privacy, some VPNs use RAM-only servers. Those servers erase any logs and user data as soon as they’re turned off.
A VPN that has RAM-only servers simply can’t keep any logs because they’d be wiped away at the end of a session, thus erasing any trace of your activity during it. Even if such a server is stolen, the malicious actors won’t be able to get their hands on your data for that reason.
https://vpnalert.com/resources/vpn-logging-policies/#List_of_RAM-only_VPNs