What is Surfshark One? How to enable 2FA on your Surfshark account? What is 2FA and why is it important? What to do if I have lost or forgotten my email address or password? I need to change the registration email. How can I do that? How many devices can I use with Surfshark simultaneously? How to enable 2FA for multiple users? Does Surfshark keep any details of user accounts? Do you keep any logs of my internet activities? How to join the Surfshark referral program?