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iPhone Takes Screenshots of Everything You Do

The_AV8R writes "Jonathan Zdziarski showed that every time you press the Home button on your iPhone, a screen capture is taken in order to produce a visual effect. This image is then cached and later deleted. Zdziarski says that there have been cases of law enforcement looking up sex offenders' old data and checking recovered screenshots." This revelation occurred in the midst of a webcast on iPhone forensics, demonstrating how to bypass the iPhone's password security (not trivial, but doable). Video from the talk is not online yet but is promised soon over at O'Reilly.

25 of 225 comments (clear)

  1. FUD by Ethanol-fueled · · Score: 4, Funny
    From TFA:

    Therefore, forensics experts have used this security flaw to successfully nab criminals who have been accused of rape, murder or drug deals, Zdziarski said.

    iPhone: the tool of choice for rapists, murders, and drug dealers!

    Joking aside, the article is puzzling and it reeks of FUD: if the iCrooks were bad enough to get the authorities to actively track and sieze their data then they deserve to be caught for being too stoopid to buy disposable phones in cash from 7-11. Even Johnny dormroom pot- dealer knows that!

    1. Re:FUD by wild_quinine · · Score: 4, Funny

      Joking aside, the article is puzzling and it reeks of FUD:

      Apple FUD on slashdot? Maybe the LHC is gearing up for armageddon after all.

    2. Re:FUD by djh101010 · · Score: 4, Funny

      Sorry, LSD, this is the apple-hating thread, not the rant-about-wasting-jail-space-on-potheads thread.

    3. Re:FUD by Hognoxious · · Score: 4, Funny

      Off-topic but yes, possessing drugs does make you a crook

      Or a pharmacist.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    4. Re:FUD by neoform · · Score: 4, Funny

      Alls I heard was "I love apple" and "I'm a huge fanboy"..

      --
      MABASPLOOM!
  2. Just out of curiosity... by AndyG314 · · Score: 4, Funny

    What type of incriminating things are sex ofenders doing with their iPhones.

    --
    If it's dead, you killed it.
    1. Re:Just out of curiosity... by Fx.Dr · · Score: 5, Funny

      I believe it has something to do with multi-touch.

    2. Re:Just out of curiosity... by Anonymous Coward · · Score: 1, Funny

      > What type of incriminating things are sex ofenders doing with their iPhones.

      Yeah, I think they'd prefer the iPod badTouch.

    3. Re:Just out of curiosity... by omnipresentbob · · Score: 2, Funny

      Particularly with new hardware...

  3. Pragmatic by mfh · · Score: 4, Funny

    It's pragmatic to not press the home button when doing home invasions or killing people, I guess.

    --
    The dangers of knowledge trigger emotional distress in human beings.
  4. And this just in! by Artraze · · Score: 5, Funny

    It turns out that you browser will store all the information needed to recreate the web pages you visit! Not just a screenshot! This critical flaw appears to have present for years in all known browsers! The end is near!

    Seriously? Come on. I know ./ likes to post anything related to the iPhone, especially if it involves "spying", but this is pretty uninteresting. Security is traded for speed and features on a daily basis, including places where do so presents a major risk (*cough*Outlook). This is really not too surprising since it trades at most a little privacy in exchange for a neat effect; what would you expect Apple's iCandy to do?

    1. Re:And this just in! by venicebeach · · Score: 5, Funny

      It's even worse than that, the iPhone keeps copies of all your emails, and records phone numbers you have called as well as keeping a database of all your personal contacts!!! The thing is a 5 ounce privacy invasion machine!

  5. Re:It's nice to know by Subliminalbits · · Score: 5, Funny

    Don't forget the page file. The horror; your computer is constantly taking screen shots of your applications ram and storing them on the hard drive!

  6. Only the guilty have something to hide! by TibbonZero · · Score: 1, Funny

    Think of the children!

    --
    Tibbon
    tibbon.com
  7. Re:It's nice to know by Vornzog · · Score: 2, Funny

    You must have a problem with .bash_history too, right? Caching your keystrokes! OMG!

    I don't much like .bash_history, so I usually do this:

    $ rm .bash_history
    $ ln -s /dev/null .bash_history

    Can I do something similar with the iPhone? Better not to have to think about it, even if it isn't incriminating.

    Benjamin Franklin was talking about exactly this when he said:

    "They who can give up essential privacy to obtain a little temporary eye-candy, deserve neither privacy nor eye-candy."

    That man was way ahead of his time.

    --

    -V-

    Who can decide a priori? Nobody.
    -Sartre

  8. Re:Even the Author Doesn't Think It's News by Rob+T+Firefly · · Score: 4, Funny

    I _am_ Jonathan Zdziarski

    No, I'm Jonathan Zdziarski!

  9. Re:Even the Author Doesn't Think It's News by Inda · · Score: 4, Funny

    No, I am Jonathan Zdziarski.

    --
    This post contains benzene, nitrosamines, formaldehyde and hydrogen cyanide.
  10. Re:Even the Author Doesn't Think It's News by fo0bar · · Score: 3, Funny

    I _am_ Jonathan Zdziarski and even I don't understand why this is news.

    Welcome to Slashdot. Here's your oversized novelty foam finger.

  11. Re:Makes you wonder.... by SQLGuru · · Score: 2, Funny

    If I lived in a house with all of that screaming, I'd probably be violent, too.....

    Layne

  12. iKnowWhatYouDidPhone by Anonymous Coward · · Score: 1, Funny

    Turns out iPhone is really iKnowWhatYouDidPhone!

  13. I'll show them... by russotto · · Score: 3, Funny

    I wrote a little app to fill the cache with screenshots of the IRS web pages. Anyone tries to investigate me, they'll have to carefully examine Publication 936, the instructions for Schedule F1, the guidelines for reporting "nanny" wages, and the like. Even if they aren't literally bored to death, they definitely won't want to look any further.

  14. Re:Makes you wonder.... by frosty_tsm · · Score: 3, Funny

    You can with the iBeer app.

    (sorry, I tried to find the link)

  15. Re:Makes you wonder.... by BagOBones · · Score: 2, Funny

    Or iPint which is a free app

    --
    EA David Gardner -"... but the consumers have proven that actually what they want is fun."
  16. Everything I do? by Anonymous Coward · · Score: 1, Funny

    So my iPhone takes a 'screen' shot of EVERYTHING I do? This is disturbing to say the least. Let's say, for example, I am sitting on the crapper. Does my iPhone take the shot at the beginning, or at the end? That would be good to know. Also, what if left my iPhone in the other room, you know, for privacy. Will my iPhone take a screen shot of me not being in the room, but in another room, you know, doing something? Wow! Everything I do? It's mind-boggolin g (sp?)

  17. Re:It's nice to know by Anonymous Coward · · Score: 1, Funny

    When did people start eBaying 5-digit UIDs?