Dell Annual Threat Report Reveals Cyber Criminals Using Aggressive, Shape-Shifting Threat Tactics; 50% Surge In Encrypted Traffic Affected Millions Of Users In 2015 Exploit kits evolved with alarming speed, heightened stealth and novel shape-shifting abilities Secure Sockets Layer/Transport Layer Security (SSL/TLS) encryption passed the tipping point, encrypting 64.6 percent of web hits and leading to February 26, 2016 News