Microsoft Defender Reviews: Is It Legit?

Customer Experience

Positive experience33.8% of reviews
Neutral12.0% of reviews
Negative experience54.2% of reviews

~ Based on 557 written reviews from the US App Store.

What users say about Microsoft Defender

Is Microsoft Defender Safe?

Microsoft Defender: Security appears safe based on user ratings. AppsHunter Safety Score for Microsoft Defender is 94/100.

This assessment is based on 21,965 user ratings, with an App Store average of 4.7/5.

Safety Analysis

93.1% of ratings point to a safe experience
2.9% of ratings suggest some concerns
4.0% of ratings point to a risky experience

~ Based on 21,964 App Store ratings for Microsoft Defender.

Is Microsoft Defender Legit?

Microsoft Defender: Security appears to be a legitimate app. AppsHunter Legitimacy Score for Microsoft Defender is 100/100.

Based on 100 of 100 points across 7 verification signals from App Store and developer data.

Top reviews

Works

i’ve had no issues

It puts my phone offline

This stupid app becomes disabled and requires updates from time to time, even it’s just updated from the App Store last night. If I don’t update it, all my apps lose connection because the VPN is disabled.
My phone is set not to use cellular data to download apps. As a result, when I am outside and MS Defender thinks itself needs an update, my phone is offline.
This is my personal phone. I can accept business apps are offline when the VPN is disabled. But, how dare you do block my personal apps?
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To slow to update!

Very annoying, everytime this app needs updating it takes a half n hour sometimes to 15mins?! It is frustrating! I have so many apps that never take as long as this one.

Works great!

Works great!

🤔eigentlich eine super App🤔🤔doch

Seit einiger Zeit bekomme ich bei WhatsApp Probleme beim senden von Fotos 🤔🤔es war nicht leicht festzustellen was das Problem war aber nach dem ich das vpn deaktiviert hatte klappte wieder 🤔🤔ich würde mir wünschen dass das Problem behoben oder gelöst wird 🤔vielen Dank

Battery hog

Latest update in October 2026 has skyrocketed background battery usage by this useless app which is mandated by a policy.

Useless

This is useless for me because every time I try to do or see anything, it won’t let me. I can’t do anything at all. I can’t update my information because it doesn’t allow me to.

Hard to use

I’m an EE and half the time I can’t figure out your recommendations. Come on!!!

Powerful!

The Microsoft defender security has been stopping all the riffraff and fraudulent websites. Get the app for yourself. It works! 💯

Drains my battery

Every now and then it kills my battery which I notice by my phone being warm.

Annoying not being able to ignore AI related iOS updates

Getting extremely annoyed at alerts to update to an ‘optional’ iOS update. At most you would expect ability to select ‘ignore this advisory’ or ability to define ‘optional updates’. It is OK not to want optional updates. Please recognise your customers right to decide & enable ability to not only delay but also IGNORE updates. Security is still available on other update options.
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Making app load slow

The speed of surfing and accessing application become slow

Totally invasive

Needs web connection, complains all the time. Uninstalling.

HELP

Help Me please..The VPN feature, which was disconnected last year, still appears in the interface of my Microsoft Defender account app, despite no longer being functional. To resolve this, I had to completely delete the app from my device.

Inappropriate

! Apple decides when their IOS updates are made. I am using their current version.

Technical issues

The VPN feature, which was disconnected last year, still appears in the interface of my Microsoft Defender account app, despite no longer being functional. To resolve this, I had to completely delete the app from my device.

Seems to be doing the job nicely.0

Easy to use and works well.

But I was turning on when I’m not active with that to keep my browser protected by a phone protectiv

I can not have this on my because Benjamin doesn’t support The VNpbrowser

Great app but clunky

Great app but should be easier to turn the web protection back on after using a vpn instead of having to push 4 or 5 buttons each time.

It sucks

Don’t know who made it suck, but they should fix it.