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OK, here is the best article I can find on it:
http://www.darkreading.com/mobil ... hina/d/d-id/1327498
Reading it confirms my suspicion that the methodology of the tests was based around a phone rather than the software itself, I.e. they did not check any versions other than those found on the phones they were interested in, which leaves a big question mark over all the adups fota software, and is indeed the conclusion drawn by kryptowire when they extended the risk to the market presence figures provided by adups themselves. However adups does say the version on the blu phones was a customised version installed in error, unfortunately they do not appear to have responded to follow up queries, which causes me to doubt the transparency of their position.
It seems to me there is a significant risk the fota behaviour extends beyond the versions of the software examined by kryptowire, so while it may be correct to say versions 5.0.x to 5.3.x were the only ones found with the vulnerability, this is likely because these were the only versions examined.
If somebody is aware of other adups fota software versions being examined, and found free of the spyware, I will happily stand corrected?
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