Over the past two years, we've seen a ton of stories about teenage tech geniuses who have pushed legal boundaries by cracking the codes of governments and other major institutions, sometimes from their own bedrooms. Hacking may have been a pastime of Mark Zuckerberg's back at Harvard, but computer-sleuthing has landed some of these young hackers in jail. From a 15-year-old who broke into over 250 websites to the 18-year-old who took down Lady Gaga, click through the slideshow below for some of the most unbelievable teen hackers who have made headlines recently.

Which story was most shocking to you? Tell us in the comments below or tweet @HuffPostTeen.

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  • Ryan Cleary and Jake Davis

    Last year, British teens Ryan Cleary, 20, and Jake Davis, 19, made headlines for targeting the CIA, the Pentagon, NHS, Sony, Nintendo and <em>The Sun</em>. Most notably, the pair - known as "LulzSec" online - pranked <em>The Sun</em> by replacing its homepage with a spoof of Rupert Murdoch's obituary. Now, they both <a href="http://www.thesun.co.uk/sol/homepage/news/4394595/Teen-hackers-accessed-CIA-USAF-NHS-Sony-Nintendoand-The-Sun.html" target="_hplink">face jail time</a>.

  • DJ Stolen

    Last year, then-18-year-old hacker, who called himself DJ Stolen, hacked into the personal computers of several pop stars. He <a href="http://www.bbc.co.uk/newsbeat/13807773" target="_hplink">stole multiple unreleased tracks</a> from Lady Gaga, Ke$ha, Leona Lewis, Justin Timberlake, and Mariah Carey over the course of two years and sold them online. He also downloaded explicit photos from Ke$ha's computer. His <a href="http://www.bbc.co.uk/newsbeat/13807773" target="_hplink">punishment</a> included 18 months in detention and therapy for internet addiction.

  • Call Of Duty Hacker

    14-year-old Irish hacker broke into the online servers of <em>Call of Duty: Modern Warfare 2</em> to start a phishing scam, but it didn't land him in court. Instead, Microsoft was so impressed with his skills that they <a href="http://blogs.seattleweekly.com/dailyweekly/2011/05/irish_teen_hacker_scares_micro.php" target="_hplink">offered to work with him</a> to develop his talent for good. That's one way to land a job!

  • Nicholas Allegra

    If you've ever jail-broken your iPhone, you have <a href="http://www.forbes.com/sites/andygreenberg/2011/08/01/meet-comex-the-iphone-uber-hacker-who-keeps-outsmarting-apple/" target="_hplink">20-year-old Nicholas Allegra</a> to thank for that. The tech whiz finds cracks in Apple's coding system and exploits them, allowing users to install any application on their phones. Apple responded by making its code tougher to crack, but will that be enough to stump Allegra?

  • App Developer Hacked School's Computer

    By 14, Aaron Bond had already designed six apps. But the tech-savvy teen went a little too far - he <a href="http://www.technolog.msnbc.msn.com/technology/technolog/teenage-app-whiz-expelled-hacking-his-school-370681" target="_hplink">hacked into his school's computer</a> after supposedly seeing a set of password keywords in the school's office. He was expelled; however, his mother blames the school for poor cyber-security.

  • Austrian Hacker

    This April, the Austrian police arrested a 15-year-old for hacking into a shocking <a href="http://www.huffingtonpost.co.uk/2012/04/18/15-year-old-arrested-for-hacking-259-companies_n_1433494.html" target="_hplink">259 companies</a>. He is the country's youngest arrested hacker and is estimated to have broken into an average of three sites per day.

  • TeamPoison

    Two unnamed British teens, ages 16 and 17, known as <a href="http://www.independent.co.uk/news/uk/crime/team-poison-hackers-claim-to-have-recorded-antiterrorist-hotline-calls-7640090.html" target="_hplink">TeamPoison</a> recorded phone calls made to Scotland Yard's Anti-Terrorist Hotline this April. They bypassed decades-old technology to eavesdrop on highly sensitive conversations and posted their recordings on YouTube. Both boys were taken into custody.

  • Greek Hacker

    A Greek teenager was arrested last year for allegedly <a href="http://www.msnbc.msn.com/id/43322692/ns/technology_and_science-security/t/teen-held-over-cyber-attacks-targeting-us-government/#.UAbk42lYsc8" target="_hplink">hacking into websites of the U.S. government and Interpol</a>, ending a two-year chase. A raid of his house revealed 130 fake credit cards. Allegedly, his back is tattooed with the statement, "Capitalism is opportunity and opportunity is freedom."

  • Norwegian Teen Hackers

    Two unnamed Norwegian teens have been arrested in connection to a <a href="http://www.bbc.com/news/technology-18005505" target="_hplink">string of computer attacks</a>. Although the targets have not been confirmed, the <a href="http://www.bbc.com/news/technology-18005505" target="_hplink">BBC alleges</a> they may have included the British Serious Organized Crime Association, the Norwegian lottery, and a German newspaper. The teens face up to six years in jail.

  • Pelham High School Student

    An unnamed student from Pelham High School in Pelham, NH hacked into the school's computer to change grades. "I was a little shocked, but it is a little bit amazing that we have kids with that kind of computer aptitude that would be able to crack into the system," Pelham parent Debbie Croatti told <a href="http://www.huffingtonpost.com/2012/04/20/new-hampshire-high-school-student-allegedly-hacked-into-computer-to-change-grades_n_1441468.html" target="_hplink">WHDH-TV.</a> "I'm glad that they found out and that they're going to remedy the situation and make it better."