Is it possible to prevent sign in attempts? IAM Event - Authentication Failure

In regard to a method to prevent login attempts there is not an option for Microsoft cloud applications (and most other cloud based applications). Due to the nature of cloud applications web access is available anywhere in the world with an internet connection and attempts may be made by a human or in most cases a bot. 

Applying Whitelisting as a form of Geofencing is great option to prevent access after an initial login attempt success but actually preventing a sign-in attempt is not an option at this time.

 If not already in place our suggestion is to ensure the user in question has strong MFA enabled and a very complex password as a pre-emptive step.