Microsoft deprecates Defender Application Guard for some Edge users

Microsoft deprecates Defender Application Guard for some Edge users

December 21, 2023 at 01:14PM

Microsoft is deprecating Defender Application Guard and Windows Isolated App Launcher APIs for Edge for Business users. Application Guard uses hardware-based virtualization to isolate and block potential threats, while protecting against malware infections. Users are advised to switch to alternative security measures and to refer to the Microsoft Edge For Business security whitepaper.

Based on the meeting notes, the following key takeaways can be generated:

– Microsoft is deprecating Defender Application Guard for Edge for Business users, including the Windows Isolated App Launcher APIs.
– Microsoft Defender Application Guard (MDAG) uses hardware-based virtualization to block potential threats by opening them in a secure sandbox.
– Application Guard for Edge automatically opens untrusted sites in isolated Hyper-V-enabled containers to protect business customers.
– Enterprise admins can define trusted websites and cloud resources for protection against potential malware infections.
– Microsoft announced the deprecation of Microsoft Defender Application Guard for Microsoft Edge for Business and will no longer be updating it.
– Customers are encouraged to refer to the Microsoft Edge For Business security whitepaper for more details on the security capabilities that still ship with its Edge for Business web browser.
– Microsoft introduced MDAG support to the Edge web browser in April 2019 on Windows 10 systems.
– Defender Application Guard for Office, including the Windows Security Isolation APIs, is also being deprecated.
– Users are advised to switch to alternative security measures such as Defender for Endpoint attack surface reduction rules, Protected View, and Windows Defender Application Control.
– Microsoft is dropping VBScript in future Windows releases and will disable insecure Transport Layer Security (TLS) 1.0 and 1.1 protocols.
– Exchange Online Client Access Rules (CARs) deprecation has been delayed by one year until September 2024.

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