- 89.5LEGITIMACY SCORE
- 90.0SAFETY SCORE
- 4+CONTENT RATING
- FreePRICE
Microsoft Defender: Security App Complaints & User Negative Comments 2024
Microsoft Defender: Security app received 76 complaints, negative comments and reviews by users. Have you ever had a bad experience using Microsoft Defender: Security? Can you share your negative thoughts about microsoft defender: security?
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Microsoft Defender: Security for Negative User Reviews
✓ Breaks access to a number of legitimate websitesI’ve lost track of the number of legitimate websites that get blocked but this app. 50% of public WiFi login screens are getting blocked. I can’t use wifi at my gym or favorite cafe without deleting this app. Absolutely incompetent engineering by Microsoft. A downgrade in every way. Legitimately considering leaving the company over this unless someone competent fixes the app, or we get corporate phones..Version: 1.1.23250104
✓ Battery Life IssuesSince the last update the app is consuming copious amounts of battery life...in the 10-20% per day range ...update: 3 months later and the batter life issues continue to persist.Version: 1.1.37180111
✓ Half baked productBrings speed to a crawl, too many bugs..Version: 1.1.30160105
✓ Disables other VPNs.App disables other VPNs which in effect prevents my adblocker from working..Version: 1.1.35130101
✓ App no longer works after latest updateAfter the most recent update I found that my phone wasn’t connecting to the WiFi and it also wasn’t getting any internet connection on the 4G. I was concerned that I may have a virus etc so went to check the defender app and it wouldn’t open. I then uninstalled it and my WiFi connected straight away. I have now reinstalled the defender app but it won’t let me sign in. Some Serious bug fixes needed here!!.Version: 1.1.42070102
✓ DisappointedI had to uninstall the app because it kept turning on the VPN and it was breaking all of my apps. I really liked the idea of the app and got a lot of value from the dark net monitoring, etc. but ultimately had to remove it since it was breaking other functionality and I had no way to stop it other than uninstalling. I might try again later but really disappointed in this from Microsoft..Version: 1.1.48150101
✓ Vpn issue every time after shutdownEvery time after voulantary shutdown, after power on VPN tries to configures and in loop and phone never connected to wifi or cellular network. I have to delete defender app and re install again.Version: 1.1.42070102
✓ You killed “Calendar” appI’m not sure what you’re doing every time I pull up the Apple calendar app but you’ve destroyed it’s ability to render correctly. Must you recheck all the link in calendar every time I open it (I think this is what is happening). I live in the calendar app with managing 5+ different calendars between a busy work life, teenagers, service work and a marriage. Please figure this out for better functionality. If you’re going to sell companies on that they need to force employees to put this on personal devices then stop ruining their personal device experience..Version: 1.1.23010101
✓ Uses 20% of my batteryNever thought about it before because everyone says iPhone mini has a smaller battery but after talking with other people about how terrible my battery was I started looking at the reports and see this app taking 20% of my battery use! No wonder everyone here complains about the battery drain! It’s actually true!.Version: 1.1.19220101
✓ UselessLiterally the last thing I need on my phone. The defender team knows this app is useless - the only thing this does is a loopback VPN that scans phishing URLs, which can be replaced by a Safari ad blocker and would not feel as intrusive as a VPN that must be turned on 24 hours. Ridiculous that company portal requires this to be turned on every once in a while, which is just a hassle..Version: 1.1.34040102
✓ FrustratingInstalled app and created account. When logging in via another device it says it can’t find my account, yet when trying to create another account using the same email it says that there is already an account with that email. Tried resetting the password, now my original device will not connect, let alone get to the login stage. ABSOLUTELY INFURIATING!!!!! Please get it sorted..Version: 1.1.40170105
✓ Completely breaks connectivityOh look, all my apps that need data stopped working again! <kills defender link scan> And now they work… I’ve submitted multiple reports about this behavior, but nothing is done. If you’re in the position, it’s best to avoid having this on your primary device. Buy a junk phone for work stuff or prepare to battle IT just to be able to use your own device normally. 😤.Version: 1.1.25210102
✓ Doesn’t allow you to disable features and acknowledge itI have this on a lot of devices and the annoying part is I use another VPN protection service so I don’t need that aspect of this app on any of my devices yet this app won’t allow me to say “it’s okay” or “ignore” and constantly tells me something is wrong with my devices. So it’s useless to me until this happens..Version: 1.1.42070102
✓ Slows deviceNoticeably slows device resources and browsing experience. Uses way too much data, 1.5 GB per week. Unable to change any configurations to reduce data usage without completely turning off the application and then I cannot use any of my resources on my phone whether they belong to my company or not. Drains battery considerably..Version: 1.1.22200103
✓ Over-reachingMy experience with Defender is that it slows e-mails from loading and even prevents legit sites from opening. Also, could not turn off the vpn - each attempt to deactivate the VPN resulted I the VPN reactivated in about two seconds. Had to uninstall this one just to maintain productivity..Version: 1.1.43040105
✓ Very poorI can’t believe that with an update only three weeks old, that the same issues appear to be present that were mentioned on here six months ago.Version: 1.1.38010102
✓ Poor Quality AppIf there is an option to give negative ratings, I would have given it to this app. Day 1 I install this and is the biggest mistake I did that day. This application should not break other applications like messages, because now I don’t get new message notifications after installing this. I’m now waiting for a new iPhone SE release to decamp all my Microsoft applications there as a dedicated work phone so that it can no longer ruin my main phone.Version: 1.1.25210102
✓ Unable to register after last updateMmmm. After the last update, am no longer able to login with my family 365 subscription.Version: 1.1.30300102
✓ BooooNeeds paid subscription.Version: 1.1.44030101
✓ Doesn’t block phishing websitesThe app constantly permits malicious websites. I’ve tried accessing multiple known bad sites I receive via email and the app permits everything. Completely unreliable..Version: 1.1.35020101
✓ Give us a work phone pleaseI kept putting it off installing it until I needed to dial in for an important meeting and i got kicked out saying I havent installed this app. Really? After installing it told me it scanned 2k links, what links, I only used outlook and teams to work for the past few hours. Just get employee a work phone. I would rather carry two phones around other than have all these company apps stored on my phone to monitor everything..Version: 1.1.23010101
✓ Huge battery drain for no perceptible valueThis app used 45% of the battery on my iPhone 13 pro max today. This isn’t uncommon. On a good day it uses 20% of the battery. It also breaks basic functionality in some apps. For example the My Spectrum app won’t even finish loading on my phone when Defender is installed and running. On the dashboard in this app all it ever says is that it’s “scanned” 5K+ links in the last 24 hours? It doesn’t matter if I’ve been using my phone heavily, or barely at all. What “links” does this thing think it’s scanning? Where does it find them? What is it “scanning” them for? I navigated to a handful of known phishing sites just to see what this app would do. It didn’t seem to do anything as far as I could tell. What value does this provide me, or my company? How is it worth nearly half my battery, and breaking basic functionality in 4 other apps I use?.Version: 1.1.23010101
✓ Battery and network killerSeveral legit apps complain about network connection loss, then when I disable the defeater, sorry defender, they’re back on line again. When enabled, the battery life drops from 40h to 26h consistently (on iPhone 13 pro). So much for the claim it’s framed by apps running in foreground. Not reliable enough to keep it enabled, so it defeats its purpose..Version: 1.1.23250104
✓ App is interfering with my WifiI can’t get a reliable wifi connection at home while this is installed..Version: 1.1.42070102
✓ No longer working!Since the last two updates the app no longer allows one to connect to the internet on WiFi or mobile data, rendering the VPN software utterly useless! Hence only one star and the removal of the app..Version: 1.1.43040102
✓ Crashes on 1st step of configCrashes on latest iOS setting up the local VPN loop. Can’t get past that 1st step. #EpicFail.Version: 1.1.25210102
✓ Hate itGirlfriend used this app to spy on me.Version: 1.1.41240105
✓ Drains battery in no timeI had 97% batter before I went to sleep. This is a new battery with 100% battery health. I woke up with 2% battery left. The setting shows no other app using battery at background only MS defender. This is terrible to see battery health report shows the drain by each hour with this app. Makes things slower and cause the phone to lose charge very quickly. Only reason I use is because we are forced to use it to get access to work resources. I wish someone can consider improving as this is forced upon us.Version: 1.1.33160103
✓ Link UnsupportedUpon signing into app link is unsupported, troubleshooting methods were attempted from resetting and redownloading app to ensuring cookies were not blocked, however cookie poisoning and other https attacks were captured within the program, between web browser and app. Maybe this is what’s causing the link to be unsupported, not sure many uncertain factors are contributed towards this concern. Recently updated iOS security firmware that could be a cause as well other platforms were affected when attempting to sync account by logging into app with browser..Version: 1.1.43130108
✓ Absolutely Terrible!!!This App Drained My Battery Life, Got 10 Annoying “Harmful Site” Screens When Opening A 100% Safe Link, Destroyed Other Apps, & Breaking My Wi-Fi Network! This App Is Getting More Worse Than I Think It Was, This Broke 3 Applications Like Apple Maps, Minecraft, & Apple Contacts. Also, I’m Using A 7th Gen iPad & It Displayed The Wrong Device. It’s Named “This iPhone”, But I’m Using My iPad Right Now, You Need To Fix This Kind Of Unfixed Causes That I’ve Experiencing. This App Is Terrible & I Need To Uninstall This App Before My Device Is Getting Unstable Now..Version: 1.1.27250108
✓ Few glitches stillTurned on web protection on a personal device and it seemed to block the azure account checking for a charity email account signed in on outlook. It would be nice if the products would play nicely together..Version: 1.1.44070101
✓ Okay until recent issueWas working okay but now it won’t allow web protection on the iPad Pro to stay enabled. Toggle switch won’t lock on to enable. 6 November 2023 12:32 GMT..Version: 1.1.46300105
✓ Wouldn’t launchHad it installed on iPhone 14 pro max. Was working fine until I restarted my iPhone. I wasn’t able to connect to wifi or 4g cellular after that. Thought it was my wifi. But how come both wifi and 4g cellular stopped at the same time? So I knew it was my phone. I tried launching defender. It won’t launch. That’s when I decided to uninstall/remove the app from my phone. Voila! Both 4g and wifi came back into life! Microsoft please fix this..Version: 1.1.42070102
✓ Caused applications to stop workingOut of the box with no modifications this app caused Twitter not to load any videos, caused my bell Fibe app to not load any channels. It took me months to find the culprit..Version: 1.1.42070102
✓ Ios 16.3 defender issueAfter the update to 16.3, defender was enable to engage. As a result, wifi was not available. Defender was unable to engage. It kept flashing on /off. To bypass this, I had to remove it. Once removed wifi was able to engage. I have reset my device and will try defender again. This has worked as expected in previous versions of ios.Version: 1.1.37180111
✓ Terrible AppThis has frozen both my M1 Air and Mini. Do it right or don’t bother 👎.Version: 1.1.29260103
✓ Now brokenCurrently unusable as it won’t accept I have a subscription. The startup page appears asking me to log in, which I do, then says it can only be used with a subscription, clicking on the button takes you to the sign up page for ms 365, even though I already have a subscription. Please fix asap..Version: 1.1.30300102
✓ Defender Killing my IPhone BatteryThis APP uses a unacceptable amount of battery because it is constantly running in the back ground. APP is at #1 under battery usage list on my IOS device using around 27% of my total battery between charges. Currently, uninstalling this App. and reinstalling to check my work email then uninstalling it when done…..every time!.Version: 1.1.34040102
✓ RubbishTurns off all the time ! Has done since installing it and now it’s frozen! Won’t even load !!.Version: 1.1.45120101
✓ Slowed Wifi/InternetAfter installing the latest iOS 17 updates my phone, wifi/interned connection slowed right down. After trying to figure out what the issue was I trued turning off Automatic VPN Connection in settings. Things went right back up to normal speeds. I deleted this app and no further issues..Version: 1.1.47220106
✓ Recent releases poorThis app used to work OK, but recent releases have caused issues - most recently I have had several occasions where I had to delete the app because it completely prevented WiFi traffic (mobile data worked fine). Reinstalling and it worked ok again..Version: 1.1.30300102
✓ Not great, issues after restartsRecently when iPhone is restarted, the VPN fails to connect. This causes issues with wi-fi. I’ve seen this happen on several phones in my house. Fix is to uninstall. Not a great product..Version: 1.1.42070102
✓ Mega high data usageI install the app temporarily to access my work content, but uninstall it each time due to unacceptably high data usage when I’m outside of WiFi..Version: 1.1.27250108
✓ ErrorsI’ve got several fully licensed M365 business licensed accounts and none of them will sign in because I get an error that the server cannot find a licensed account. Obviously this is an error since we are also a Microsoft Partner too. Oh well, maybe MS will fix this. I hate to see it ranked 1.6 in its debut. Hopefully they will hold this team accountable for the debacle..Version: 1.1.30160105
✓ Cannot sign inFails to sign in, the 2 step authentication cannot complete. This is either an issue with Microsoft Authenticator or the app. It stays stuck on the number confirmation, cannot use get codes because I cannot enter it..Version: 1.1.30160105
✓ Huge battery and data drain.First the good news is that it runs “out of sight, out of mind”, which I guess is good. The bad news is that when I look at my device stats this app uses about 50-75% of my battery every day and used about 15GB of data for the month. I’ll be honest, I’m not entirely sure what it’s supposed to do but I know it’s physically costing me money since I now have to charge my phone 2x per day..Version: 1.1.24210103
✓ Clash with Outlook and AuthenticatorFor a few weeks outlook has been locking up when authenticating for work accounts making the app almost unusable. Have just uninstalled defender and it seems to have solved the problem..Version: 1.1.43040105
✓ Keeps needing to be reinstalledFor the second time in a week, my WiFi has refused to connect when trying to connect to the VPN. The app won’t launch and I have to reinstall the app in order to get it to connect..Version: 1.1.42070102
✓ VPN seems to be all it does and it's just okVPN works fine. Until you need to turn it off for a second to access something, in my case the Verizon app doesn't work over this VPN, so even if you temporarily disable this VPN it breaks WiFi until you reinstall the app. Also if you temporarily lose service it fails to reconnect correctly until you uninstall the app..Version: 1.1.43040105
✓ Broke my WiFi!!!At first I liked the extra phishing protection. But then I started having problems with my WiFi speeds. When I turned off the app it improved. Then I had to reinstall my phone (for different reasons) the app blocked the WiFi almost completely. Took ages to work it out and turn it off to get my phone to reinstall. :/ Not happy Microsoft!!.Version: 1.1.36120102
✓ Battery drainExperience over the last 4 days since I installed this app: read messages in a messaging app for 1 min, nothing else was running, battery went from 100% to 87%; searched recipes in Edge and battery dropped more than 30% in 5 mins; had to charge my phone 3 times during the daytime… Need to get a secondary phone to separate work and personal use now..Version: 1.1.23250104
✓ Is it doing anything?I can’t see any info or logs that it is actually doing anything..Version: 1.1.38010102
✓ Worked till restartEver since I restarted the phone it is a decision of whether I want internet connection or defender...took long time installing uninstalling restarting to get it work again.Version: 1.1.42070102
✓ Interrupts internet connectivityIt’s been almost a year since I’ve been forced to install this app (if I want to continue to access company apps), and somehow, it’s worse than it originally was. More than several times a day, I have to restart the loop back vpn to do a simple internet search or load any data. At this point, I can’t justify ruining the usability of my personal device to access company systems. It’s very disappointing, because accessing those systems from my phone allows my team and I to be more productive, and this app is interfering with that..Version: 1.1.34040102
✓ Hasn’t worked for meInstalled and setup on my iPad. Tested it with a phishing email and it failed to detect the nature of the email. I was never challenged or warned that this was a bogus attempt to obtain personal details. I wonder what the point of this app is as it failed on the basics..Version: 1.1.41070101
✓ Download. Can’t sign in. Deleted app.This was my customer journey: Downloaded app > error when trying to sign in > deleted the app.Version: 1.1.32010101
✓ @daniel_gaudin1#DJluciolle.Version: 1.1.41240105
✓ AnnoyingEvery now and then, it decides that I don’t have access to the company resources. Even after I update ios and delete and reinstall the app and enable it in all aspects, it says I don’t have access. It’s frustrating. I could take an app that’s sloppy or inefficient, but how can it lack so badly in functionality.Version: 1.1.33190102
✓ Microsoft account no longer foundI have been using the preview of this app for a while and have it installed on my iPhone, iPad, laptop and desktop. Now, on my iPhone I cannot login because my account cannot be found and I cannot creat an account because my email address is already in use..Version: 1.1.27250108
✓ Can’t connect to WiFi on flightsWhen I’m on airplane mode and I connect to the plane’s wifi, the gogo or United web portal don’t load because of the VPN. When I disable/uninstall this app, everything works fine. Please fix this scenario. I will also echo the data and battery usage complaints. I was traveling internationally and this app used a ton of my roaming data, which is expensive!.Version: 1.1.25210102
✓ Can’t use 4G when not up to dateIf my device or app version is not up to date then this app blocks all internet except for WiFi. Also when this happens you can’t disable the app unless you’re back on WiFi. So if you’re out and about you don’t have internet and there’s nothing you can do. This app is embarrassing..Version: 1.1.42070102
✓ Doesn't explain what it does.I use a variety of tool, including a VPN, an adblicker, and a DNS security tool, so I want to understand how MS Defender might work or not work with the rest. But all it says is that it protects you from web sites trying to steal your information. That is far too vague to make sense of. I get that many uses don't understand these things but there need to be a "more information" feature that actually explains what I'm turning on when I say enable web protection..Version: 1.1.43040105
✓ Makes phone inoperable when signal strength is lowWhen the cell signal isn’t great the VPN makes websites and apps no longer load. Turn off the web filtering VPN in these scenarios and sites load fine again. This needs to be addressed please. This shouldn’t stop the phone from functioning..Version: 1.1.46030102
✓ OK I guessI was using it across three devices: desktop, iPad, and old Samsung S8 phone. Unfortunately I had to pull it off my phone. It was a battery hog. Where the battery would usually last almost 40 hours, with the app running it wouldn’t last 24 hours..Version: 1.1.48150101
✓ Update FailedThe update for iOS issued today is not installing, it keeps hanging.Version: 1.1.35130101
✓ Why is MS defender biggest user of cellular dataCheck your cellular data usage in iOS settings and you will see MS defender at the top with massive consumption of data. What is it really doing? Is it spying and sending/uploading data to MSFT? Unfortunately there is no wifi data usage in ios settings and I am sure it would show up there at top as well..Version: 1.1.33160103
✓ Not greatIf you want to stream, play a game, or basically use any apps the “privacy protection” has to be turned off which defeats the purpose of privacy protection. Sometimes an app will run with it on, but most of the time it will not..Version: 1.1.47220106
✓ Breaks Calendar and drains batteryI’ve used my work calendar through the built-in Calendar app for years, but now it never stays in sync essentially rendering it unusable. Battery drain is also a real problem when this is running. To be clear, I don’t mean the percentages that are attributed to it in Settings, I mean that my phone literally dies earlier in the day on days that I have this enabled. This is the case on days with similar usage and screen on time..Version: 1.1.27090104
✓ Performance impactedSystem performance is greatly affected making it almost unusable. Unable to use my IOS devices which have this installed..Version: 1.1.47070104
✓ Very challenging to switch phonesBetween this app, Authenticator, and the comp portal app, they all work terribly together and have wasted hours of my time trying to set up a new phone this week. I keep deleting and starting over and whether it’s comp portal saying I don’t have this app (defender) when I already do, or trying to get me to use the auth app when it’s not working yet, the whole thing has been a nightmare. at this point I’m probably just not going to access work things on my phone, period..Version: 1.1.23250104
✓ Terrible experienceIf I enable web protection in MS defender, mobile data stops working on my phone. WiFi still works. There is definitely a bug for the VPN over mobile data. This is very frustrating because my organization forces me to turn on web protection to get access to company resources..Version: 1.1.40180102
✓ Battery Drain and Excessive Background ActivityMSFT recently required this app to be running on any phone accessing corporate resources such as email/calendar, etc. Uninstalled after 1 day because it used 15% of my battery. The app claims it was scanned 8k links in the background. Why? I certainly wasn’t accessing those links. Why is the app scanning links not in use on the phone? What is the actual background activity?.Version: 1.1.22030101
✓ Would give 0 star if I canThe corporate required us to install this App post Oct,25th otherwise we wouldn’t be able to get access to the corporate resource. 7 days since I’ve installed this App, it has consumed 7GB of my cellular data, 13% of battery in the background while the only two other Apps that have been using more battery are IMs that I’ve been frequently using throughout the week. Uninstalling it now. I’d rather not checkout any resources from my phone and only use corporate PC instead. Thanks Microsoft! Kudos to enforcing our work life balance!.Version: 1.1.22200103
✓ Does not workThere’s is a real issue with this app and the compatibility with the iPhone 14. On installing it works fine for a few hours then it completely disabled the phone. No internet access no service no connectivity to Bluetooth devices. Nothing. When you try to open turn off the vpn it doesn’t allow you to. When you try to open the app it closes dien staring away. You have to delete the app to get your phone working again. Pity!.Version: 1.1.43040105
✓ Ineffective, needs work.I thought I’d test this out before putting it on my family’s phones and iPads. Whilst testing I received 2 scam messages and the app did nothing while following their links. The app also fails to report the correct status most of the time so when you view security status on another device it’s reported as “unknown”. This happened for both my iPad and iPhone. I tried reinstalling and this fixed it for a few hours but the same happened again..Version: 1.1.30300102
✓ Utter RubbishWould have given zero stars if I could.Version: 1.1.22030101
🙂 Microsoft Defender: Security Positive Reviews
Microsoft Defender: Security works most of the time. If it is not working for you, we recommend you excersise some patience and retry later or contact Microsoft Defender: Security.
⛔ Microsoft Defender: Security Problems
