On paper, this promise is reassuring. In practice, it is not always maintained, and for good reason: while 2FA effectively protects against opportunistic attacks, it remains vulnerable to more sophisticated techniques. Between technical vulnerabilities, ingenious diversions, and human error, this measure, while well-intentioned, proves imperfect. But should we just throw it into oblivion? No. On the other hand, understanding how it’s not infallible can help you take better advantage of it.