In a previous article, Blue Coat Labs pointed out that a growing number of security professionals are overconfident about the ability to handle security threats hidden in Secure Sockets Layer (SSL) and Transport Layer Security (TLS) communications.
The 2016 Cyberthreat Defense report from CyberEdge found that 85% of security professionals believe their organisations have this issue covered, but at the same time only 20% of next-gen firewalls (NGFWs) and unified threat management solutions (UTMs) actually inspect SSL traffic, according to a report from Gartner. Meanwhile, Blue Coat Labs found dramatic increases in malware using SSL in the last two years.
In fact, between January 2014 and September 2015, more than 500 samples of malware families were seen to be using SSL each month. In the remaining three months of 2015 this figure soared to nearly 29,000 samples. A similar trend was observed in C&C servers: in Q3 2014, Blue Coat observed approximately 1,000 C&C servers using SSL, shooting up to over 200,000 observed in Q3 2015
Some of the myths that persist about SSL traffic as well as the SSL blind spot are as follows:
There are a lot of interesting stats and figures that will assist when dealing with the SSL blind spot.