-VVS-

Q: Virus try to brute-force my unlock screen pin on iPad immediately after FaceTime call redirect

Hi all!

 

I guess there could be exploit in FaceTime/call redirection proto. It's the 3rd time when I see my iPad is flashing with digits brute-forcing pin code to unlock screen and does not react on any touch or buttons.

 

The scenario is as following:

1. I receive a call on iPhone

2. Call is redirected to iPad via FaceTime

3. After call is answered from iPhone, iPad do not fall into sleep

4. iPad does slide to unlock!

5. iPad start flashing with digits (it looks the same when you tapping and after any touch digit flashes). The sequence is traditional: 1111,1211,1221,etc,etc...

6. Finally iOS blocks pin entering with timeout and iPad back to normal operations, reacts on buttons and touches.

 

I talk about iPad2/iPhone4S running latest iOS 8.3.

 

If anybody get the same problem, please write here.

iPad 2, iOS 8.3

Posted on Apr 15, 2015 2:25 AM

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Q: Virus try to brute-force my unlock screen pin on iPad immediately after FaceTime call redirect

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  • by thomas_r.,

    thomas_r. thomas_r. Apr 15, 2015 5:16 AM in response to -VVS-
    Level 7 (30,924 points)
    Mac OS X
    Apr 15, 2015 5:16 AM in response to -VVS-

    What you describe sounds more like a problem with your iPad's touchscreen than a hack. There's no known method for brute-forcing the lockscreen code in that manner.

     

    Note that the sequence you describe isn't really "traditional"... the only digits you describe as being used are 1 and 2, which are right next to each other... a problem with the touchscreen in that region could easily explain that. Use a soft, slightly damp cloth to clean the screen. If that doesn't help, contact Apple for diagnosis and service.

  • by -VVS-,

    -VVS- -VVS- Apr 15, 2015 7:35 AM in response to thomas_r.
    Level 1 (0 points)
    Apr 15, 2015 7:35 AM in response to thomas_r.

    Thanx a lot Thomas for your reply.

     

    That was I thought first time I noticed the problem - about not to clean touchscreen but to change protective film. Would change it  next week than watch on. Then would write here again about results.

  • by thomas_r.,

    thomas_r. thomas_r. Apr 15, 2015 7:39 AM in response to -VVS-
    Level 7 (30,924 points)
    Mac OS X
    Apr 15, 2015 7:39 AM in response to -VVS-

    If you have some kind of protective film on the screen, that could very well be the problem. I hate those things. The worst thing you could do to a beautiful screen like those Apple puts on iOS devices is to cover it up with some cheap plastic! I've never used one, and neither have my wife or any of my kids, and despite some fair abuse, none of our iOS devices have ever had a scratch or other similar damage to the screen. I carry my naked iPhone in my pocket all day every day, and its screen is still pristine.