Gili Raanan

Gili Raanan
Born	1969 Kfar Saba, Israel
Nationality	Israeli
Occupation	Partner at Sequoia Capital

Gili Raanan (born 1969) is an inventor who is one of the inventors of CAPTCHA (US patent application with 1997 priority date ) and many other inventions in the fields of application security and discovery. Raanan started Sanctum in 1997, and invented the first Web application firewall AppShield and the first Web application penetration testing software AppScan. He later started NLayers which was acquired by EMC Corporation pioneering the science of Application discovery and understanding. He is an investor and a General Partner at Sequoia Capital, and was a board member at Adallom, Onavo and Snaptu.

Raanan was born in Kfar Saba, Israel. He earned a Bachelor of Computer Science In 2002 from the Tel Aviv University, he received a Master of Business Administration degree from the Recanati School of the Tel Aviv University.

Raanan started Sanctum in 1997, and invented the first Web application firewall AppShield and the first Web application penetration testing software AppScan.

As part of the research on Application Security Raanan has co-invented CAPTCHA, as described in the patent application "The invention is based on applying human advantage in applying sensory and cognitive skills to solving simple problems that prove to be extremely hard for computer software. Such skills include, but are not limited to processing of sensory information such as identification of objects and letters within a noisy graphical environment" .

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