E-mail to log-in?

Hmm, can anyone tell me why I got an e-mail like this? I wasn’t even using the computer at the time stamp on the mail.

The link does appear to go to accounts.rhino3d.com

@Helvetosaur, it’s possible that someone else tried to login using your email address, triggering the login link being sent to you. Without the link, they would not have been successful. If you’re at all concerned then check that you have two factor authentication set up on your account.