The Hill reports:
The Islamic State in Iraq and Syria (ISIS) uses a 34-page manual to instruct its followers on how to stay invisible on the Internet.
The Arabic document was translated and released this week by analysts at the Combating Terrorism Center, an independent research group at the U.S. Military Academy at West Point.
It includes warnings to avoid Instagram because it is owned by Facebook, and Dropbox because former secretary of State Condoleezza Rice sits on its board of investors. Famous government leaker Edward Snowden has also criticized Dropbox over its privacy, the document notes.
According to the English translation, "Snowden advised not to use the service and considered it dangerous to personal security and privacy."
Michael Morell, who served as deputy CIA director from 2010 to 2013, wrote in his memoirs published this year that Snowden's revelations aided ISIS. "Within weeks of the leaks, terrorist organizations around the world were already starting to modify their actions in light of what Snowden disclosed. Communications sources dried up, tactics were changed,” Morell wrote. "ISIS was one of those terrorist groups that learned from Snowden, and it is clear that his actions played a role in the rise of ISIS."
Last week, former CIA director Jim Woolsey, who was appointed by Bill Clinton, said that Snowden has "blood on his hands."
"I'm no fan of the changes that were made after Snowden's leaks of classified information. I don't think they have improved our ability to collect and use intelligence, and I think they've seriously reduced our abilities," Woolsey told NPR. "I think Snowden has blood on his hands from these killings in France.