![]() ![]() ![]() ![]() In order to use ASR, Microsoft Defender Antivirus must be configured as the primary real-time antivirus scanning engine on workstations.ĪSR offers a number of Microsoft Office-related attack surface reduction rules, these include: It is designed to combat the threat of malware exploiting legitimate functionality in Microsoft Office applications. Attack Surface ReductionĪttack Surface Reduction (ASR), a security feature of Microsoft Windows 10, forms part of Microsoft Defender Exploit Guard. The following recommendations, listed in alphabetical order, should be treated as high priorities when hardening Microsoft Office deployments. Finally, as Group Policy settings for Microsoft Office are periodically updated by Microsoft, care should be taken to ensure the latest version is always used. For cloud-based policy configurations, equivalents are available in Microsoft 365 Apps admin centre for many of the Group Policy settings. Once downloaded, the ADMX and associated ADML files can be placed in %SystemDrive%\Windows\SYSVOL\domain\Policies\PolicyDefinitions on the Domain Controller and they will be automatically loaded in the Group Policy Management Editor. The Group Policy Administrative Templates for Microsoft 365, Office 2021, Office 2019 and Office 2016 can be obtained from Microsoft. Before implementing the recommendations in this publication, testing should be undertaken to ensure the potential for unintended negative impacts on business processes is reduced as much as possible. This publication provides recommendations on hardening Microsoft 365, Office 2021, Office 2019 and Office 2016 applications. Hardening applications on workstations is an important part of reducing this risk. At the moment, it’s not yet clear as to when the new visual update for Microsoft Office would become ready for everyone, but for now, it’s expected to launch in the fall.Workstations are often targeted by adversaries using malicious websites, emails or removable media in an attempt to extract sensitive information. It’s important to understand this Office overhaul is still in development and Microsoft is aware of several known issues. The redesign will be enabled automatically in the coming days, but users can always opt-out by manually disabling the Coming Soon feature, located in the top right corner. Agree to the terms and conditions, and click OK.Select “ Sign me up for early access to new releases of Office”.In any Office app, click File > Account > Office Insider.Make sure you’ve Microsoft 365 subscription.To join the beta program, follow these steps: In an update to the support document, Microsoft said the new Office visual update is rolling out to Office insiders running beta builds. For Microsoft Office apps, there’s a new dark mode experience and it matches the look and feel of Windows native dark mode. ![]()
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