-When agents at the Drug Enforcement Administration learned a suspect was using PGP to encrypt documents, they persuaded a judge to let them sneak into an office complex and install a keystroke logger that recorded the passphrase as it was typed in.
A decade ago, when the search warrant was granted, that kind of black bag job was a rarity. Today, however, law enforcement agents are encountering well-designed encryption products more and more frequently, forcing them to invent better ways to bypass or circumvent the technology.
One way to circumvent encryption: Use court orders to force Web-based providers to cough up passwords the suspect uses and see if they match. "Sometimes if we can go in and find one of those passwords, or two or three, I can start to figure out that in every password, you use the No. 3," Van Buren said. "There are a lot of things we can find."
For more on this story, read Feds seek new ways to bypass encryption on CNET News.