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Old October 24th, 2013, 05:22 AM   #1 (permalink)
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Default Annoying Message "Prevention Information"

My phone is displaying the following message randomly, and always when I reboot the phone. No idea why.

"Prevention Information. An application has been forced to stop for an unauthorised attempt to access system on your device. It may be safe to delete an application obtained from an unauthorised route. Check now?"

I then have the option to press OK and my list of applications displays. Or I can press Cancel and the message disappears for a while. I also have tick box for "Do not show for 30 days", which I don't want to press yet until I get some more information.

My phone is a new Note 3, unrooted, with just the normal applications running - all downloaded from PlayStore

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Old October 24th, 2013, 05:35 AM   #2 (permalink)
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I get the same message on my rooted UK spec Note 3. I got a lot of it when I tried to do a Titanium Backup restore. In the end I had to factory reset the phone and set everything up manually. I'd also like to know specifically what it is and if possible how to disable it. I feel like I don't have full control of my phone.
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Old October 24th, 2013, 05:52 AM   #3 (permalink)
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Maybe a pop up ad which has a bug?
... pushed by ad networks like AirPush, Leadbolt etc. and caused by a recently installed or updateted app on your phone.

To be sure you'd install and run a detector app like 'Ad Network Detector' by Lookout.
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Old October 24th, 2013, 06:18 AM   #4 (permalink)
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BTW Chris, hi and welcome to Android Forums!

It sounds to me like there may be a root app on the phone. Without root access, it will be denied every time. Check the apps you've downloaded to make sure none are for rooted phones. You said everything you downloaded is "normal"... but that word has little meaning around here, as everyone seems to have their own version of "normal"

It’s great to have you here
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Old October 24th, 2013, 07:28 AM   #5 (permalink)
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Originally Posted by The_Chief View Post
....It sounds to me like there may be a root app on the phone. Without root access, it will be denied every time.
I don't think that's the case. I've had the same message on my phone before I rooted it and afterwards. The message doesn't mention anything about root access. At first I thought it was Knox but I haven't even installed/enabled that. I know when you root the Note 3 you trip what people are calling the Knox counter and so far that can't be reversed. But before I rooted (and also for chris2464 who hasn't rooted) I had that message. I think it's something specific to either Android 4.3 or the Note 3 itself. I'm just glad someone else has had the same message. Sorry chris2464.
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Old October 24th, 2013, 09:03 AM   #6 (permalink)
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I have a new un-rooted Note 3 and am getting this message a few times a day as well. All of my apps came from the play store and running Lookout reports no problems.

"Prevention information
----------------------
An application has been forced to stop for an unauthorized attempt to access system in your device. It may be safe to delete an application obtained from an unauthorized route. Check now?"

And like the others said. There is no mention of which application did it. And when you select 'OK' it just goes to the list of downloaded applications. Nothing is highlighted or gives any hint. The only option really is to start uninstalling apps until you find the one and since it happens randomly it could take quite a bit of uninstalling.
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Old October 24th, 2013, 09:30 AM   #7 (permalink)
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For to find at least the app which caused the message you'd try 'Notification History'.
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Old October 24th, 2013, 09:33 AM   #8 (permalink)
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Quote:
Originally Posted by chris2464 View Post
My phone is displaying the following message randomly, and always when I reboot the phone. No idea why.

"Prevention Information. An application has been forced to stop for an unauthorised attempt to access system on your device. It may be safe to delete an application obtained from an unauthorised route. Check now?"

I then have the option to press OK and my list of applications displays. Or I can press Cancel and the message disappears for a while. I also have tick box for "Do not show for 30 days", which I don't want to press yet until I get some more information.

My phone is a new Note 3, unrooted, with just the normal applications running - all downloaded from PlayStore

Thanks
Uninstall apps until it you're no longer able to recreate the error. Just because it was in the Play Store doesn't mean it will work on an unrooted phone, or gets along with Knox.

Whatever app it is, likely isn't running correctly anyway.
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Old October 24th, 2013, 01:57 PM   #9 (permalink)
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I think the cause of this message is in the phone's Settings -> Security -> Verify apps ...

But I'd not want to uncheck the option
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Old October 30th, 2013, 07:30 AM   #10 (permalink)
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Might be Knox ... there is an app Knox Disable on Play Store for rooted phones.
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Old October 31st, 2013, 03:09 PM   #11 (permalink)
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The problem is none of the above. My Note 3 did this right out of the box, with nothing new downloaded. The only apps on the phone is what it came with. Samsung was no help. Unchecking the box to verify apps in the security settings has no effect, the box is unchecked on my phone.
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Old October 31st, 2013, 04:50 PM   #12 (permalink)
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I started having that message myself, today. It was after I had activated that Lookout app though.

I just cut it off. Will see if that makes a difference. Do you have that app?

I clicked the '30 day' thing though, so won't know if that was it or not.
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Old October 31st, 2013, 06:22 PM   #13 (permalink)
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Quote:
Originally Posted by chris2464 View Post
My phone is displaying the following message randomly, and always when I reboot the phone. No idea why.

"Prevention Information. An application has been forced to stop for an unauthorised attempt to access system on your device. It may be safe to delete an application obtained from an unauthorised route. Check now?"

I then have the option to press OK and my list of applications displays. Or I can press Cancel and the message disappears for a while. I also have tick box for "Do not show for 30 days", which I don't want to press yet until I get some more information.

My phone is a new Note 3, unrooted, with just the normal applications running - all downloaded from PlayStore

Thanks
This started on my nonrooted N3 a cpl days ago as well. First I had an incoming call problem with the number coming in with a ;63 or ;00 afterwards. Immediately after that seemed to clear up, this "prevention" message started. One issue after another. Waited a long time to finally get a Note phone but now I'm thinking I should have stuck with my regular Sammy S Series phones.
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Old October 31st, 2013, 06:24 PM   #14 (permalink)
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Quote:
Originally Posted by chris2464 View Post
My phone is displaying the following message randomly, and always when I reboot the phone. No idea why.

"Prevention Information. An application has been forced to stop for an unauthorised attempt to access system on your device. It may be safe to delete an application obtained from an unauthorised route. Check now?"

I then have the option to press OK and my list of applications displays. Or I can press Cancel and the message disappears for a while. I also have tick box for "Do not show for 30 days", which I don't want to press yet until I get some more information.

My phone is a new Note 3, unrooted, with just the normal applications running - all downloaded from PlayStore

Thanks
I'm seeing many across the net with similar problems and everyone saying it's a system problem with KNOX. Smh
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Old October 31st, 2013, 07:05 PM   #15 (permalink)
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I am also getting the 63 after phone calls. I do not see lookout on my phone and I have not downloaded/activated knox. I do have a shortcut to download Knox but have not used it. I am sending the Note 3 back. Does anyone know if the T-Mobile Galaxy S4 updates via air or updates via Kies?
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Old October 31st, 2013, 07:15 PM   #16 (permalink)
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This is first Sammy phone I have had that Kies applies to, so i do not know.

I sort of think it would update either way though, when there is an update available for them to push out to you. Seems like they only push out a limited number in a timeframe though.

Regarding Knox, supposedly I have that disabled, at this point.
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Old October 31st, 2013, 08:28 PM   #17 (permalink)
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I get the message as well. I think it relates to the Boat Browser activation .apk I downloaded. It was the only app with a ? mark on it when I checked the programs. Now I just have to figure out how to stop it.
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Old November 1st, 2013, 12:29 AM   #18 (permalink)
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I am most certain this has to do with starting or opening knox for the first time.. I had my N3 since day one and never once had this message.. Just the other day I decided to open knox to see what it was.. Halfway thru setting it up I just cancelled and closed it.. Since then I noticed that this message started to pop up.. I had no clue what it was but now after thinking about it I know that's the problem.. I have since done a clean wipe /install and don't plan on touching the knox app nor opening it and so far so good
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Old November 1st, 2013, 12:43 AM   #19 (permalink)
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I've never opened knox. I use Lookout. T-mobile gives the premium version to it's customers.
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Old November 1st, 2013, 12:44 AM   #20 (permalink)
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Quote:
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I get the message as well. I think it relstes to the Boat Browser activation .apk I downloaded it was the only app with a ? mark on it when I checked the programs. Now I just have to figure out how to stop it.
Boat doesn't need to be "activated" does it? Just install and use, that's it AFAIK. I'd be suspicious of an app that just had "?" for a title or ID though. Where did that come from?
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Old November 1st, 2013, 12:51 AM   #21 (permalink)
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The question mark was like a tag on the app name itself. I'll post a picture in a few minutes. I have to power down to get the message and status bar icon to show up again.

I downloaded the activation to get all the premium features Boat Browser has. Plus I didn't mind sending a little cash those folks way.
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Old November 1st, 2013, 01:07 AM   #22 (permalink)
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Quote:
Originally Posted by Harry2 View Post
I think the cause of this message is in the phone's Settings -> Security -> Verify apps ...

But I'd not want to uncheck the option
I unchecked it but it didn't help. Here's that screenshot of what I think is causing it on mine. Tapping on the message in the notification window to take this shot erased the icon on the status bar though. It looked like a gray shield.



Darn. Now that I looked at it closely that's a key not a question mark. Back to the drawing board...
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Old November 1st, 2013, 08:48 AM   #23 (permalink)
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Whenever disconnecting or connecting to Wifi I would also get the Prevention message.
My work around, Press and hold the Prevention notification message, then stop knox and clear cache. No messages since.
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Old November 1st, 2013, 09:50 AM   #24 (permalink)
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Thank you. App info using your advice revealed it was a knox notification. Now let's see what happens next time I power off...
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Old November 3rd, 2013, 11:56 AM   #25 (permalink)
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Hello everyone,

Here are two things that I did.

About the message: "an application has been forced to stop for an unauthorized attempt to access system in your device", I may have found the solution. While playing with the S Health application on my Note 3, Samsung asked to update the application. I updated the S Health application as asked by Samsung, and voila, the message does no longer show. It has now been about 5 hours with or without WiFi, and with several restarts, and still no message with the shield. Keep my fingers crossed.

Hope this helps. Please pass the info along.

Rolf Schreiner

Note: The updated S Health Samsung app is version: SH-V25H ver 2.5.3.49

Another update:
The message seems to appear every time that you connect to WiFi...
To kill the message on Note 3:
When the message appears, long press on it. It will show you the app info: the Knox notification manager. Then "clear cache" and "clear data", clear the message, and the message will no longer show, until the next reboot...
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Old November 3rd, 2013, 08:58 PM   #26 (permalink)
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Quote:
Originally Posted by Limeybstd View Post
Whenever disconnecting or connecting to Wifi I would also get the Prevention message.
My work around, Press and hold the Prevention notification message, then stop knox and clear cache. No messages since.
This is when i get the msg as well, connecting to wifi (At home anyways, only wifi ive been on since having phone). I followed you work around advice. Thank you.
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Old November 4th, 2013, 12:19 AM   #27 (permalink)
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Default Troubleshooting the problem - wifi the culprit?

I tried the S Health update as well. Unfortunately this did not fix the issue. After re-starting and turning wi-fi off and then on again, the annoying message returned.
Looking through the list of wi-fi networks available I found a bunch of networks that I had connected to (airports and home, and a couple at work) - entering each wi-fi network I clicked on 'Forget'. After doing this I had no recurrence - as long as I did not try to connect to wifi. I have restarted the Note3, disabled and re-enabled wifi (which was triggering the message previously), and the annoying message is not being triggered anymore - as long as I do not try to connect to any wi-fi source. Next I tried to connect to a wifi network, and hey presto - the Knox "prevention" message comes up again... so, it looks like Wifi may be the culprit. Any ideas?
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Old November 4th, 2013, 12:26 AM   #28 (permalink)
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I think I'm going to have to actually turn knox on and see what's up in the settings menu for that program. Either that or just turn it off which I can't do now because I never turned it on.
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Old November 4th, 2013, 01:28 AM   #29 (permalink)
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Okay. To start with Samsung Kox is a 200MB Download when you first start it up to use it. After that and settings up passwords and PINs you are presented with a new homescreen but with all your old icon placements. What this has to do woth the Prevention Message is beyond me. Anywho oncw tha's done you can uninstall or force stop. I don't have a convienient Wifi Network to log on to at the time so I'll have to wait until I get home. I'll update around 8:00 AM EST and let you know if the message comes back when I connect to my home network.
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Old November 4th, 2013, 06:47 AM   #30 (permalink)
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Welp that didn't work either. Guess I'll just have to live with it.
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Old November 4th, 2013, 07:20 AM   #31 (permalink)
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Welp that didn't work either. Guess I'll just have to live with it.
Here's an ongoing thread at XDA on the subject. Some have had luck clearing the cache and data, then unticking Unknown Sources in Security. Though that may only be temporary, and some don't have that option enabled at all. Might be worth following.

Prevention Information Message - xda-developers
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Old November 4th, 2013, 07:48 AM   #32 (permalink)
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I have unkown sources enabled. I'll check if shutting it off does anything.
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Old November 4th, 2013, 08:04 AM   #33 (permalink)
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Nope. Force stopped everything remotely related to knox including thr com.sec stuff and KLMS, cleared the cache on all that although V.1 of knox refused the command to clear cache, rebooted with Wifi off and restarted the phone. Same old message appeared. If nothing else I think that narrows it down to knox V.1 sending the message. Seriously though, I can live with it. It's not like I connect to multiple Wifi networks throughout the day. I only see it once then clear the message.
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Old November 4th, 2013, 09:33 AM   #34 (permalink)
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Default My Solution

After hours of diagnostic work, here's what works for me. It's been 4 days and the pesky message has not returned. Next I passed this on to the guys at work that were experiencing this, and it fixed all six of theirs as well.


If you follow these steps in order I'm confident this will work for those of you with this common and annoying error message.

1) Shut down all running apps.
2) Perform a restart.
3) Go to: Settings/General/Applications Mgr/All

For T-Mobile N3:
Select Outlook Security/clear cache and data

For AT&T N3:
Select Trust Go Security/clear cache and data

Shut off your N3 for approx 30 seconds, then reboot.

That's it.
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Old November 4th, 2013, 10:11 AM   #35 (permalink)
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Thanks for the suggestion. But I cannot find Trust Go Security under all in App Manager on my AT&T N3. Any suggestions? Thanks!


Quote:
Originally Posted by zipred View Post
After hours of diagnostic work, here's what works for me. It's been 4 days and the pesky message has not returned. Next I passed this on to the guys at work that were experiencing this, and it fixed all six of theirs as well.


If you follow these steps in order I'm confident this will work for those of you with this common and annoying error message.

1) Shut down all running apps.
2) Perform a restart.
3) Go to: Settings/General/Applications Mgr/All

For T-Mobile N3:
Select Outlook Security/clear cache and data

For AT&T N3:
Select Trust Go Security/clear cache and data

Shut off your N3 for approx 30 seconds, then reboot.

That's it.
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Old November 4th, 2013, 10:23 AM   #36 (permalink)
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Originally Posted by DaddyWhale View Post
Thanks for the suggestion. But I cannot find Trust Go Security under all in App Manager on my AT&T N3. Any suggestions? Thanks!
The multinational company I work for offers a BYOD (Bring Your Own Device) option. We pay, and they obtain the approved Note 3 models via the discounted Corp account for us. They all have Trust Go Security, I just asked our IT mgr, he said it's not specifically for us, but a std app on the phones. Sorry I don't know why yours doesn't.
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Old November 5th, 2013, 12:28 PM   #37 (permalink)
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I tried following and it seems to be working.

Went to App Manager and turned off S Health app. After that also turned off 2 ANT+ apps. Restarted the phone.
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Old November 5th, 2013, 01:08 PM   #38 (permalink)
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Default rooted apps

This message showed up yesterday on my (unrooted) note 3 for the first time. After reading the whole thread I decided to start with the easiest solution first. I deleted all apps that show root compatability. ... The message seems to be gone for now.
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Old November 5th, 2013, 03:53 PM   #39 (permalink)
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Default the Exorcist

I don't have TrustGo, or Outlook Security.

Last night, using perhaps not the most scientific approach, I cleared caches of many apps. I restarted the device whilst standing in the light of a full moon. I removed the battery, I polished the SIM card, I got an old priest and a young priest to exorcise daemons. To no avail. This morning I turned the phone on, and the error message came straight back.
So, continuing with my religous fervour, this morning I've stopped any automatic updates and taken every service and installed app back to factory settings. I've removed the apps that I installed just before this pesky message started - Shazam, Tower Defense, and as it seems to have helped some others here, also stripped out S Health and 2 Ant apps.

After a restart, I've not had any relapses, but I'm just waiting for the sequel.
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Old November 5th, 2013, 04:15 PM   #40 (permalink)
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If it was a program asking for root access then su would have prompted me to grant it or deny it. It just about has to be a native samsung app and I'm also inclined to think it has something to do with either the date or like suggested in the xda thread a google app update (more likely). My phone never got any updates from sprint or samsung before I rooted it and now it won't take updates. That rules out a firmware update causing it.

And the fact that it is happening to phones regardless of carrier or current update makes me think it has to be an app update. The likely-hood of so many people having the problem all running the same set of apps is pretty slim, that points me towards a google or samsung app that has had a recent update from the play store. I think I'll start uninstalling those updates one at a time and see what happens.

Strange, I was coming here to post screenshots of it and ask for advice on what it was and then I saw this thread. That makes me feel a lot better.

The funny thing about this error is the first time I got it I opened android tuner and looked at the list of system apps running and found the same icon and opened it up. I remember it was pointing to an app in system but I didn't have time to fool with it then and now I can't find the icon anymore in the list. I just didn't want to freeze it until I figured out what it was. I should have taken a screenshot...
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Old November 5th, 2013, 04:45 PM   #41 (permalink)
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I only started getting these irritating messages near the end of last week and they came out of nowhere. There was no app that I installed outside of the play store and the culprit is Knox. I am not using my phone to access the corporate network so have none of the Knox crap installed - just what Samsung has running by default. Clearing the cache and data of Knox appears to make it stop complaining every time I hook into a wireless network but, as has been pointed out elsewhere, rebooting the phone results in the problem coming back.
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Old November 5th, 2013, 05:08 PM   #42 (permalink)
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Default Exorcist 2 - the heretic

Unfortunately despite the efforts so far my experience is the same as sjfwhite.

After rebooting, the error message re-appeared.
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Old November 5th, 2013, 05:47 PM   #43 (permalink)
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Here's a kicker... I tried 3 or 4 things and restarted after each one to see if it helped and it crashed my sd card for some reason... I'm derailed for a bit to see if I can recover some of the files. It looks like it just ate the mbr. Maybe I'll get lucky.
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Old November 5th, 2013, 05:53 PM   #44 (permalink)
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Ive been getting the same message since i got my phone as well .. cant figure it out either. I'm not rooted or unlocked
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Old November 5th, 2013, 08:57 PM   #45 (permalink)
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I thought I'd found a clue, as the error appeared when my wifi was on. I killed open apps, turned off wifi and bluetooth, restarted the machine. But the error persists!

Wifi seems to be innocent of this crime.
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Old November 5th, 2013, 11:02 PM   #46 (permalink)
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I started to have that same message yesterday. Today I received a pop up indicating a Security Update and clicked on it and so far no more annoying message even after reboots and wifi reconnections.
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Old November 5th, 2013, 11:38 PM   #47 (permalink)
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I started to have that same message yesterday. Today I received a pop up indicating a Security Update and clicked on it and so far no more annoying message even after reboots and wifi reconnections.
Welcome to the forums madmax168. When you installed that security update did it say where it was from, or what it was for?
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Old November 5th, 2013, 11:45 PM   #48 (permalink)
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I actually didn't check where it was from but I just clicked OK and so far no more such Prevention Information message. My Note 3 is from Smart Philippines and unrooted with 4.3 N9005XXUBMJ1.

Probably it might have been from Samsung to update the security certificate for some of the Samsung Apps that have been updated.
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Old November 5th, 2013, 11:51 PM   #49 (permalink)
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N9005XXUBMJ1 started rolling out on October 7th for International version Note 3s. No love from Samsung for the US yet, IT makes perfect sense that a Firmware update would fix this issue.
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Old November 5th, 2013, 11:59 PM   #50 (permalink)
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But it was only a security certificate update pop up message. It wasn't a firmware update at all since it finished in a few seconds unlike when they updated the software which took a few minutes and a reboot too. Samsung probably will be seeding the same security updates to other countries within the day to correct probably one of their app updates that probably triggered this problem.

Is there a way where I can check what it was? I don't have an idea of where to check the update logs. I'm kinda new to Android and just accepts any updates that pop ups

Good luck.
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