Tow Senario To Pre Account TakeOver

بسم الله والحمد لله الذي علم بالقلم علم الانسان ما لا لم يعلم والصلاة والسلام على خير معلم الناس الخير محمد وبعد

Account Takeover (ATO) refers to the unauthorized access and control of a user’s account by an attacker. In an ATO attack, an adversary gains access to a legitimate user’s account credentials (such as username and password) through various means, including phishing attacks, malware, credential stuffing, social engineering, or exploiting vulnerabilities in authentication mechanisms,ATO attacks can have severe consequences for both individuals and organizations, including financial losses, reputational damage, legal liabilities, and regulatory penalties. To mitigate the risk of ATO attacks, users and organizations should implement strong authentication mechanisms, such as multi-factor authentication (MFA), regularly monitor account activity for suspicious behavior, educate users about phishing and social engineering threats, and promptly respond to security incidents by resetting compromised credentials and conducting thorough investigations.

1 - First scenario

1 - open target that have 0auth to signup option

2 - signup with victim email and your password

3 - now complete signup , you are loged in but your account not verified

4 - victim went to sign up with 0auth

5 - now in hacker window account is verified and victim dont know is another one use his account

2 - secound scenario

1 - Sign Up for an account with the attacker’s Google account.

2 - After signup, the attacker will be change email, and password for the account.

3 - The attacker changes the email to the victim’s email,

4 - When the victim tries to create an account, the email already exists , Now the victim tries to reset the account password Or Check of Verfcation Code and successfully does so.

5 - The victim is unaware of the fact that the Google account of the attacker is still connected to his account. There is no way he can unlink the attacker’s Google account from his account.

6 - attacker Still can signin with google account