Account takeover fraud is a significant threat to organizations storing user login information, as it accounted for two-thirds of identity fraud cases in 2021, and insurance may not cover the losses. This form of fraud involves malicious actors stealing login credentials to access various accounts, often to conduct unauthorized activities such as transferring funds or accessing personal data. Common methods for acquiring login information include phishing attacks, social engineering, and public database compromises. Businesses can mitigate risks by monitoring account activities for unusual patterns, such as sudden changes in customer details, account access from foreign IP addresses, or multiple logins from the same device. Implementing Web Application Firewalls, multi-factor authentication, and device identification solutions can enhance account security and prevent unauthorized access. Early detection and intervention are crucial for limiting the damage from account takeovers, which can also lead to reputational harm and loss of customer trust.