<P> On 19 September 2012, security researchers demonstrated during Pwn2Own, a computer hacking contest held in Amsterdam, Netherlands, that the S III can be hacked via NFC, allowing attackers to download all data from the phone . </P> <P> In December 2012, two hardware issues were reported by users of the S III: A vulnerability of the Exynos SoC allowed malicious apps to gain root privileges even on unrooted devices, and a spontaneous bricking of the unit, called the "sudden death vulnerability", that occurs about six months after activation . Samsung has been replacing the mainboards of affected units under warranty . In January 2013, Samsung released a firmware update that corrected both issues . </P> <P> Effecting both Galaxy s II and s III, some units can have high memory use without apparent cause, in itself causing units to be unable to store any more data and making the units memory to be' full' when apparently not using all of the units internal memory available . In October 2012 Samsung noted that this was caused by a mass cacheing archive running in the background of units operational tasks . This copied and saved media, tasks and app information to a background archive which was not accessible to the user without change and re-writing of the phones operational script . When this has been altered access can be gained and the cache can be deleted and no further cacheing will occur unless requested . This issue was resolved for the Galaxy s IIII (and Later) model . </P> <P> As of mid-2013, two S III explosions were reported . The first involved a man from Ireland, while the more recent incident occurred when a Swiss teenager was left with second and third degree burns in her thigh caused by her phone's explosion . </P>

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