A man types on a computer keyboard in Warsaw in this February 28, 2013 illustration file picture. Photo: REUTERS/Kacper Pempel/File Photo. CTech – American cryptocurrency exchange Coinbase has made its first acquisition in Israel, purchasing cryptographic key management and protection startup Unbound Security. Coinbase, which has a market cap of almost $69 billion, and Unbound refused to reveal the cost of the acquisition, but according to industry estimations it is believed to be more than $150 million. Coinbase will set up an Israeli R&D center based on Unbound’s infrastructure. Unbound was founded in 2015 by world-renowned cryptographers Professor Yehuda Lindell,...