According to the reports over the last couple of days, the Sim card maker Gemalto may have been hacked by spy agencies, but on the other hand it claims that hacking did not penetrate to the level of the encryption keys on the Sim cards it produces. Gemalto claims that the hack got into their office system but not beyond that. We won't hear anything from the authorities concerned (for some time, or possibly ever) and Gemalto should know, so perhaps that is the end of it.