Ars Technica: A security study drawing data from more than 1,600 networks over a six-month period found that 97 percent of the networks experienced some form of breach—despite the use of multiple layers of network and computer security software. The study, performed by analysts from security appliance vendor FireEye and its security consulting wing Mandiant, compared current network defenses to the Maginot Line, the infamous French fortress chain that the Germans bypassed during their May 1940 invasion.

The data collected from network and e-mail monitoring appliances from October 2013 to March 2014 also showed that three-quarters of the networks had command-and-control traffic indicating the presence of active security breaches connected to over 35,000 unique command-and-control servers. Higher-education networks were the biggest source of botnet traffic.