Also known as account hijacking, this is a form of identity theft where an attacker gains unauthorized access to a user account. The attacker can use many techniques to achieve this like phishing, exploiting security vulnerabilities, or employing brute force attacks. 

After gaining complete control of the account, the attacker can misuse it for malicious purposes, such as damaging the users’ reputation, stealing sensitive data, or even locking the users out of their accounts. 

Account Takeover Examples 

How Do Account Takeovers Happen?

Account Takeovers Prevention 

Account Takeover Attack Mitigation