Syria Rebels Find Skype Useful, but Dangers Lurk - NYTimes.com

A stark Skype snapshot

"Introduced in 2003, Skype encrypts each Internet call so that they are next to impossible to crack. It quickly became the pet technology of global organizers and opposition members in totalitarian countries. And while Skype’s encryption secrets remain elusive, in recent months the Assad government, often with help from Iran, has developed tools to install malware on computers that allows officials to monitor a user’s activity.
“Skype has gone from in the mid-2000s being the tool most widely used and promoted by human rights activists to now when people ask me I say, ‘Definitely, don’t use it,’ ” said Ronald J. Deibert, director of Citizen Lab, a research group at the University of Toronto that monitors human rights and cybersecurity."

Syria Rebels Find Skype Useful, but Dangers Lurk - NYTimes.com