Account takeover (ATO) fraud is a significant and growing threat to businesses, characterized by unauthorized access to user accounts through stolen credentials, often resulting in financial losses and reputational damage. Common methods used by attackers include brute force attacks, phishing, credential stuffing, and malware. Once an account is compromised, fraudsters often change passwords and use techniques like VPNs to evade detection, leading to prolonged exploitation. The impact on businesses is severe, resulting in financial losses, damaged customer trust, and potential legal repercussions, as seen in cases involving companies like Marriott and MGM. To combat ATO fraud, businesses are encouraged to implement multi-layered security measures, including strong password policies, rate limiting login attempts, advanced authentication methods like multi-factor authentication (MFA), and device intelligence solutions. These measures help detect and prevent unauthorized access while maintaining a balance between security and user convenience. The use of platforms like Fingerprint, which provides device intelligence and actionable insights into user behavior, can further enhance protection against ATO attacks, ensuring a secure user experience.