On Tue, Mar 20, 2012 at 8:48 AM, Parks, Raymond <[email protected]> wrote:

>  As a professional bad guy, I like QR codes as a way to pwn your phone.
>

OK, please (once again!) help us out here.  What are the key threats?

The wikipedia QR page included a very brief paragraph on risks:
http://en.wikipedia.org/wiki/QR_code#Risks

It seems the main "attack" is to encode a url that takes the user to a
malicious site. Because the url is not human readable, the user can easily
be fooled.  But is that any worse than url shorteners, which render the
above url to: http://goo.gl/t4FQV for example?  It could easily lead me to
a malicious site too.

The chief access to reading the QR codes is the "app" on your phone.  If
that is non-malware itself, then the bad guy has to exploit weaknesses in
the scanner such as running code which may have access to the device's GPS,
camera, phone, contacts etc.  So I guess its pretty important to make sure
the scanner is safe.

   -- Owen
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