Have I Been the Victim of a Phishing Scam?
Often times victims of phishing scams receive several undeliverable messages, or there will be unfamiliar emails in your sent box. Other times, your signature will be changed or forwards will be set up. Learn how to check for changed signatures and forwards.
If you believe that you have been the victim of a phishing scam, change your password immediately. If you are using Gmail, you can also end all other active sessions. This should stop any unauthorized access to your account.