Israeli start-up ThetaRay uses complex maths for the early detection of security breaches, enabling the shutdown of systems before damage can be done. Its customers and investors include GE, Hapoalim and Citi. It is in talks with Wells Fargo and Morgan Stanley and has big ambitions.
http://in.reuters.com/article/2014/10/21/us-thetaray-cybersecurity-idINKCN0IA1JV20141021