Altered with the proper steganography algorithm, this innocuous picture of a cat could be a carrier for corporate espionage.Earlier this year, someone at the United States Department of Justice smuggled sensitive financial data out of the agency by embedding the data in several image files. Defeating this exfiltration method, called steganography, has proved particularly tricky, but one engineering student has come up with a way to make espionage work against itself.
Keith Bertolino, founder of digital forensics start-up E.R. Forensics, based in West Nyack, N.Y., developed a new way of disrupting steganography last year while finishing his electrical engineering degree at Northeastern University, in Boston.
FutureWatch...
Steganography is a moving target. Now exfiltrators are beginning to make use of streaming data technologies like voice over Internet Protocol (VoIP). Disrupting or even detecting hidden transmissions inside real-time phone calls is the next hurdle for digital forensics companies, and Hosmer says it poses a significantly more challenging problem.
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