Default service accounts are user-managed service accounts that are created automatically when you enable or use certain Google Cloud services. These service accounts let the service deploy jobs that access other Google Cloud resources.

If there's ever any suspicious activity associated with your account, Google will let you know so you can secure your data.

If you notice changes in your account settings that you did not make—such as forwarding emails to an unknown address, changes to your recovery information, or altered security settings—it's likely your account has been hacked.

Most commonly, they steal victims' credentials via data breaches, phishing emails, or password attacks. Here are six warning signs indicating that your Gmail account has been hacked: Your Gmail password has been changed.