Historical Events in Germany
2009Voice Plane
The A5/1 Cracking Project (Karsten Nohl at 26C3)
Karsten Nohl published 2TB rainbow tables enabling real-time over-the-air decryption of 2G GSM calls and SMS.
2014Signaling Plane
Tobias Engel & SRLabs Disclose SS7 Location Tracking at 31C3
SRLabs demonstrated at 31C3 that SS7 flaws allow global subscriber location tracking and SMS 2FA interception.