A recent case from the Ontario courts suggests -- quite strongly -- that PGP (Pretty Good Privacy) and Blackberry security have been cracked by the Royal Canadian Mounted Police.
We rarely get much insight about police techniques from reported cases, but this seems to be a doozy in R v Tsekouras, 2015 ONSC 1470:
 The police were presented with a Blackberry cell-phone ….44505 that had been seized from the accused. Their objective was to read the information embedded in that cellphone. The BlackBerry has a reputation for being a very secure means of communication. There were three levels of security. Entry was protected by a password, the device was protected by encryption generally and e-mails processed by this particular device were protected by PGP, a form of e-mail encryption provided as an “add-on” by a third party after-market supplier. This encryption was previously thought to be undefeatable. The RCMP technological laboratory destroyed this illusion and extracted from this phone 406 e-mails, 25 address book entries and other information all of which had been protected. These materials are collected in Exhibit 8.
Of course, it could have been defeated by really bad OpSec, but who knows?