A server seized in connection with a series of bomb threats directed at the University of Pittsburgh won't help authorities find the person responsible.
Police can use social networks to spot trends, counter threats and communicate with the public. But it also has potential pitfalls, law enforcement officers say.
A hacker who posted racy photos gloating about his hack of police officers' home addresses didn't realize the pictures were GPS-tagged and time-stamped.
DHS and the U.S. Navy are interested in extracting data from video game consoles purchased overseas, in order to catch terrorists and pedophiles.
CMAS can send text-based emergency alerts to all mobile phones in a targeted area, though many phones aren't yet equipped to receive them.
The PROTECT Initiative will use a database of phone and tablet serial numbers to render lost or stolen devices inactive and educate the public on protective steps.
A company that called Osama bin Laden's death four hours before it was announced claims it can use tweets to predict the future, and has partnered with Twitter to prove it.
Butte County, Calif., says it's the first county in the state to let judges use digital signatures to issue search warrants via their iPads.
Customs and Border Protection took down documents included in a solicitation for the "virtual border fence" project that may have included proprietary contractor information.
The contest to test social media's ability to work quickly across international borders produces a partial, but still pretty impressive, result.
Though there is no litmus test to predetermine when or even if an extremist on the Web will become a violent terrorist, there are a few tell-tale signs.
U.S. police routinely track cell phones in their investigations, but only a tiny minority obtain warrants to do so, according to an ACLU investigation.
Sen. John McCain's recent rant about DHS could make even an airline passenger feel sorry for the department.
Officials stop short of calling for regulation of industry cybersecurity but tell a House panel that current efforts are "not working."
As social media analytics improves, the intelligence community and other agencies are monitoring the traffic on popular sites. But could they put privacy at risk?