In my assignments, I selected all users and excluded my break-glass account. In the Azure Portal, go to Conditional Access and create a new Policy. Once we have the proper licensing we need to route applications to Microsoft Defender for Cloud Apps. You will also need Azure Active Directory Premium P2 license. You must have a license that enables “Microsoft Defender for Cloud Apps Discovery” and not “Microsoft Defender for Cloud Apps.” At the time of writing EM+S E5 sku will not work but Microsoft 365 E5 Security sku will. In this write up I will be configuring Microsoft Defender for Cloud Apps (old name is Cloud App Security) and Conditional Access to block outdated operating systems from accessing Microsoft 365 services within my tenant.įirst thing you want to figure out, is licensing. Block Outdated Operating Systems with Microsoft Defender for Cloud Apps (Cloud App Security) Block Outdated Operating Systems with Microsoft Defender for Cloud Apps (Cloud App Security) The problem with this is that leaves a 1 in 4 chance an accidental selection may result in unauthorized access.įraud Alerts allow your users to report fraud if they receive a two-step verification request that they didn’t initiate and automatically block their account from sign-on. Some improvements to this have been multiple number options where the end user must select one of four numbers that is presented on the screen they are logging into. Traditionally, MFA notifications are push notifications where a user can either accept or deny the request. Microsoft has several items to help prevent MFA fatigue attacks that you can configure and enable for your end users. The attacker continuously sent MFA requests to an end user hoping they would accidentally approve one of them. Recently, Uber appeared to be hacked in what is called a MFA Fatigue attack.
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