Mobile malware may grow as a security threat this year, but security researcher Ralf-Philipp Weinmann says there’s a worse threat lurking around — the GSM baseband system. The threat from hacking GSM baseband systems has been largely ignored, Weinmann reportedly told the audience at a presentation at the Black Hat security conference in Washington, D.C., Monday. The advent of open source code for base station programming now lets hackers create their own base stations that will let them take over all smartphones within range in a scenario Weinmann calls the “baseband apocalypse.”