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The other week I was texting a friend of mine, and something happened that I haven't experienced before. Instead of receiving the text I'd just sent, my friend received a text I sent several months ago when I was helping her out with Physics homework. Since the text had long gone from both of our handsets, it made me start wondering what on earth could have happened.

I assumed that this meant all our conversations since at least that long ago must be logged or archived somewhere in the SMS system, by either my mobile network provider or hers. Would this be a correct assumption? And if so, what is the purpose or need for this, and how could this message have been erroneously resent to my friend, so many months later?

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closed as off topic by AviD Aug 6 '12 at 6:38

Questions on Information Security Stack Exchange are expected to relate to Information security within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

There are a number of possibilities, but it's difficult (without knowing internals of your provider's systems) to identify which is the right one. It could be caching / archives, it could be due to an old delivery request stuck in the system, or it could just be that your handset tripped out and sent an old text again. – Polynomial Aug 6 '12 at 6:02
Hi @Sean, welcome to Information Security. While this question is interesting, it is unfortunately off-topic - please see the FAQ. – AviD Aug 6 '12 at 6:39

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