“Over at the Chaos Compute Club Congress hardware hacker Bunnie Huang spoke about SD cards.  The good news is that these cards come with tiny micro controllers that make it useful for hackers. The bad news is that they are not secure.  Manufacturers have come up with ways to ensure that these cards can retain data at acceptable levels. These cards also come with firmware that can be updated however this update feature is mostly left unsecured.  A person with malicious plans could change the firmware to allow it to copy the contents of the card in a hidden space. It can also be used to run malicious software on an Android smartphone when the hardware is left idle.”

http://thedroidguy.com/2013/12/vulnerability-sd-cards-makes-unsecure/

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