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Dean Ellerby

Petri Contributor

Dean is a Microsoft Security MVP, Microsoft Certified Trainer, and co-organizer at the Workplace Ninjas UK.

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How to Deploy Microsoft Defender Application Control (Previously WDAC)

Last Update: May 08, 2025

Previously known as Windows Defender Application Control (WDAC), Microsoft Defender Application Control (MDAC) is now even more accessible to organizations through the removal of the Windows 10 Enterprise / Education requirement. Now, organizations using Windows 10 and Windows 11 Professional are able to leverage Windows Defender Application Control the feature to gain greater insight and…

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Microsoft Defender for Business Brings Enterprise-Grade Endpoint Security to SMEs

Last Update: Sep 04, 2024

On November 2nd 2021, Microsoft announced Microsoft Defender for Business. The announcement comes following a series of rebranding exercises into the “Microsoft Defender for” fold. What is Microsoft Defender for Business? Microsoft Defender for Business is a new endpoint security solution that will be available soon in preview. Defender for Business is designed to bring…

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How to Validate Applications Using Test Base for Microsoft 365

Last Update: Nov 19, 2024

Test Base for Microsoft 365 is a platform which allows you to script and automate your application compatibility testing. Hosted in Azure, and based on Azure virtual machines, this service allows the easy onboarding of applications through a dedicated area of the Azure portal. To validate apps in Test Base, you should: Sign up for…

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Windows 11 is the Most Inclusive and Accessible Windows to Date

Last Update: Sep 04, 2024

Accessibility is one of the fundamental elements required when creating inclusive technology. When developing a platform that over a billion people worldwide use daily, it’s vital to understand the impact poor usability and accessibility can have. Poor usability can cause irritation for the average user, but it can be a complete blocker to those who…

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Microsoft Intune App Protection Policies Get Improved Targeting Capabilities

Last Update: Sep 04, 2024

With Microsoft Intune Service Release 2109, released the week of 27th September 2021, there have been some significant improvements in how targeting for App Protection Policies can be achieved. These new capabilities come alongside an array of new Intune capabilities available in this new update. What are Microsoft Intune App Protection Policies? According to Microsoft,…

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Microsoft Defender for Endpoint Pricing Plans

Last Update: Sep 04, 2024

Microsoft recently announced that Microsoft Defender for Endpoint will soon be available in two plans: P1 and P2. In this article, I will look at how the two plans compare. With Windows, MacOS, iOS, and Android devices being the most common target for cyber criminals, malware and threats are continuously improving and evolving. In the…

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