A Browser-in-the-Browser (BIB) attack is a recent phishing technique that tricks users into sharing sensitive information. This form of attack replicates browser windows of legitimate domains, making it difficult for users to distinguish between the real and fake pages. BIB attacks are risky because it is unlikely that normal users will notice that they are handing over their credentials until it is too late. This attack is also very serious because it bypasses MFA security.
Read more about Browser-in-the-Browser attacks here: