With $2.6bn of cash, surely Blackberry could employ a decent programmer to write a code that prevents the leaked version of Android BBM from authenticating with the BBM server. Assuming the leak version is 1.0.1 and the stable to-be-released version is 1.1, how difficult can it be to write a code on the server side to reject connection from all versions below 1.1? It sounds fishy to be that Blackberry has decided to suspend the rollout to iOS users too if the unreleased version of Android BBM was the one causing the havoc.

From what I understand, BBM messages are not encrypted but scrambled using a global cryptographic key present in every Blackberry handset. For BBM to be cross platform, I presume that same cryptographic key has to be present in every iOS and Android app. Perhaps some Cryptologist managed to decrypt the key present in the app thus presenting a security flaw which needs to be patched before the rollout can resume.