1) If you can still access your account, change your password. Make the password different to anything you’ve used before and stronger to secure your account.
2) If you cannot access your account (i.e. the hacker has changed the password), you will need to contact your email service provider and follow the instructions for regaining your account.
3) Change your security questions, especially if the hacker changed your password previously. Make sure your answers are creative and not predictable.
4) If you haven’t done so already, report the security breach to the email provider. They may be able to offer you more specific advice for their service.
5) Inform your contacts to not open any suspicious looking emails from you. This could save your peers from compromising their accounts too.
6) Use a good anti-virus to scan your computer. Malware could have been used to steal your passwords, so ensure that this possibility is eliminated!
7) Check your email settings. Ensure no inbox rules have been set or modified, and a forwarding email address has not been set. Check any signatures have not been modified either.
8) Change passwords for other sites, especially if you have used the same password or have that email address linked to that account. Remember it is easy to reset passwords using a nominated email address, so the hackers will be able to reset the passwords for other accounts too!