Canadian police have had the master key to BlackBerry's encryption since 2010. Looks like police have a server in Ottawa to simulates a mobile device that receives a message intended for [the rightful recipient]. Of course the USA had been happily intercepting Angela Merkel Blackberry too. Perhaps using a similar setup? So much for BlackBerry being secure 
http://www.theverge.com/2016/4/14/11...p-surveillance

http://www.theverge.com/2016/4/14/11...p-surveillance