A German software engineer has cracked the algorithm that secures GSM phone calls.

"28-year-old Karsten Nohl... revealed his success at the Chaos Communication Congress in Berlin, Germany," writes ZDNet's Andrew Nusca. "He said that 24 people worked independently to reproduce the code book, or binary code log, for the algorithm, which contains the equivalent of about two terabytes of data."

"He announced his intentions to crack the GSM algorithm at a conference in August," Nusca notes.

Click here to read the ZDNet story.