Account Takeover Attacks: Techniques and Defenses
Account takeover attacks exploit weak credentials and authentication flaws. Discover the techniques attackers use and how to build effective defenses.
What Is Account Takeover?
Account takeover (ATO) occurs when an attacker gains unauthorized access to a legitimate user account. This can happen through credential stuffing (using leaked username/password pairs), brute force attacks, or exploiting weak password reset flows.
Common Attack Vectors
Attackers leverage massive databases of breached credentials from previous data leaks. Automated tools test these credentials against target login pages at scale. Accounts reusing passwords across services are especially vulnerable.
Multi-Factor Authentication Is Not Enough
While MFA significantly raises the bar, attackers have adapted with real-time proxies that intercept OTP codes. Our external assessments test the resilience of your MFA implementation against modern bypass techniques.
Detection and Response
Monitoring for anomalous login patterns, geographic impossibilities, and unusual post-login behavior can catch ATO in progress. We help you design detection strategies alongside our offensive assessments.