https://www.bleepingcomputer.com/news/security/hacker-breached-servers-belonging-to-multiple-vpn-providers/

Servers belonging to the NordVPN and TorGuard VPN companies were hacked and attackers stole and leaked the private keys associated with certificates used to secure their web servers and VPN configuration files. 

Over the weekend, security researcher @hexdefined tweeted that NordVPN, of which we are an affiliate, was compromised as the private keys for their web site certificate were publicly leaked on the Internet.