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Microsoft 'Defender' Service to Protect Android, iOS, MacOS Devices

The company adds a new perk to Microsoft 365 subscriptions called Microsoft Defender, which offers cross-platform protection against malware and phishing threats.

 & Michael Kan Principal Reporter

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Microsoft has long operated its own antivirus software for Windows PCs. But now the company is creating a security app that can protect your Android, iOS, and macOS devices too. 

The Microsoft Defender app will be available to paying subscribers of the Microsoft 365 cloud office software, and is designed to be a one-stop solution for all your security needs, across a whole range of devices from Microsoft, Google, and Apple. 

The name might confuse consumers, though. The company also calls its built-in malware-scanning software for PCs Microsoft Defender Antivirus, which can be accessed from the Windows Security app. 

Microsoft 365's newly announced Defender service, on the other hand, expands the antivirus and anti-phishing monitoring to any Android, iOS, and macOS devices the customer may own once the app is installed. 

“Microsoft Defender is simplified online security that meets you and your family where you are by bringing multiple protections together into a single dashboard,” Microsoft Corporate Vice President Vasu Jakkal wrote in a blog post. 

Features to Microsoft Defender

The “single dashboard” approach is meant to appeal to users who want to manage the online security of their entire family though a single platform. In her blog post, Jakkal called out software “fragmentation” as a key stumbling block that can impede users from keeping up with online threats. 

To fix this, Microsoft Defender is not only cross-platform, but can also work with some existing antivirus products on your devices, including Norton and McAfee. The app will also issue security tips and real-time recommendations, in addition to launching routine malware scans. 

“This is just the start. As we look forward, we will continue to bring more protections together under a single dashboard, including features like identity theft protection and secure online connection,” Jakkal added. 

However, Microsoft Defender does have a limitation. The app’s anti-malware protection only applies to Android and macOS, in addition to Windows. Apple's iOS and iPadOS, meanwhile, will receive only “web protection,” which has been designed to stop phishing attacks

To us, the app comes off as redundant. But then again, if you already subscribe to Microsoft 365, you’re getting a free perk. The security app can be downloaded from Microsoft's website.

Interested users can receive Microsoft Defender by subscribing to Microsoft 365, which starts at $6.99 per month for individuals and $9.99 for a family account.

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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