Probably one of the world’s most famous public VPN providers is leaking your traffic. The weirdest thing about it is, nobody noticed the traffic before.
Lessons learned: Always check no matter how good the reputation might be.
https://www.niem.es/2019/03/f5d599a39d02caef1984e95fdc606f838893ffc5-xyz.html
Update (2019-10)
Nobody is perfect. Half a year later, there seems to be another problem with our famous VPN service. Not so much information about it out there, so here is a link in case you want to check yourself.
Lessons learned: Double check for safety’s sake.
https://www.theregister.co.uk/2019/10/05/security_roundup_october_4/
Update (2019-10)
Oh noooo, now our famous VPN provider got hacked really bad. Private keys for OpenVPN have been revealed, but they already expired in 2018. Nevertheless, it could be that those keys were hacked in 2018 when they were still valid. All I can say: “Told ya!”
Lessons learned: Triple check for safety’s sake.
Roland's Linux Blog 