You click a link, sign in, approve the MFA prompt, and get on with your day. Completely unaware that someone else just logged into your account at the same moment.That scenario surprises many businesses, particularly those that rely on multi-factor authentication (MFA) to protect cloud accounts. But this is exactly how Adversary-in-the-Middle (AiTM) phishing attacks work. Rather than stealing passwords for later use, these attacks silently hijack an already-authenticated session in real time.MFA remains a core control, and getting it implemented correctly is still a critical first step for any business. But AiTM attacks exploit something MFA was never designed to protect: the trusted session that exists after authentication has already completed.Phishing Has Moved Beyond PasswordsPhishing remains the most common starting point for account compromise, but the objective has changed. Traditional phishing collected usernames and passwords. Modern phishing is after something more immediately useful: the authenticated session itself.Security researchers have documented a significant
