They were bought up for around a billion dollar from the Israeli company kape technologies (formerly called crossrider). Who also own CyberGhost VPN and Private Internet Access. Screams data mining to me. Then again, i like my tinfoil hat.

On a side note, crossriders former CEO and cofounder having worked at https://en.wikipedia.org/wiki/Unit_8200 in the past. Left long before the takeover though.

edit: With both expressvpn and PIA being among the most widely publicized providers that had their servers seized for non cooperation.