Security alert: new or unusual Twitter login

Looks like there was a login attempt from a new device or location If this wasn't you: Secure your account by resetting your password now. Reset password If this was you: Please confirm your identity by using this temporary code on Twitter or wherever you might enter your Twitter password: nvby39tm How do I know an email is from Twitter? Links in this email will start with "https://" and contain "twitter.com." Your browser will also display a padlock icon to let you know a site is secure. Help  |  Not my account  |  Email security tips This email was meant for @13thTnZ Twitter, Inc. 1355 Market Street, Suite 900 San Francisco, CA 94103