If you believe that your Twitter account has been hacked, you can report this security breach even if you can't log into your account.
Step 1: Notice telltale signs Notice telltale signs that your account was hacked, including unexpected tweets and direct messages sent from your account to one or more followers.
TIP: Another sign may be a Twitter notification that the e-mail address linked to your account was changed without your approval.
Step 2: Take precautions before reporting Take precautions before reporting to Twitter customer service. If you can log into your account, go to Account Settings and change your password.
Step 3: Revoke access to third party apps Revoke access to third-party Twitter apps that you don't recognize. To do so, click the Connections tab in Account Settings.
TIP: Update new password information for the apps that you trust, or you may not be able to log into your account.
Step 4: Scan your computer for malware Scan your computer with security software, looking for malware that can collect passwords, including your Twitter account password.
Step 5: E-mail a support request E-mail a customer support request if you still can't log in. Include your e-mail address, username, and the date when you last accessed your account. Once you've made contact with customer service, you'll be back on your way to secure tweets.
FACT: In 2009, a hacker sent links to a poll with a prize of free gasoline from Barack Obama's Twitter account.