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I've come across several IPs that are marked as belonging to RIM/Blackberry but seem to be a source of spam/fake users to our sites, examples :

Normally we this this warning ("recently reported spam source") with tor nodes and such, but how can spam be coming from the RIM network ?

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closed as not a real question by RobM, John Gardeniers, Tom O'Connor, Ward, Khaled Dec 29 '12 at 7:30

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Users using BBs usually have a dedicated specific service plan (BIS). BIS user traffic goes through RIM gateway first before it reaches you (think of BIS as a proxy). What you're seeing is probably compromised/malicious end-user devices. Can you match up user agents to the IPs which are registering to your site? That may tell you more. – emtunc Dec 27 '12 at 20:02
The "bad BB" traffic is definitely coming from BBs. So yes the most probable explanation is the one you gave. – Sherif Buzz Dec 27 '12 at 20:07

Looking at the links they are proxy servers, most likely for services RIM/Blackberry offer. I would contact the abuse department at RIM and they might be able to confirm. -

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Doing a google for "Research In Motion UK Limited recently reported spam source" returns tons of results of people complaining about dating/romance scammers using similar IPs.

Obviously not an isolated issue with me.

I have sent to RIM about the IPs I have, but this seems to be a rather bigger issue than a few IPs. So much for RIM being the "secure one".

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You will see the same for mobile phone network operators, as more people use get 3G cards for laptops and use their mobile phones as 3G modems – Epaphus Dec 27 '12 at 20:41

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