Cooperative Cyber Defence Centre of Excellence

NATO CCD COE, officially the NATO Cooperative Cyber Defence Centre of Excellence (Estonian: K5 or NATO küberkaitsekoostöö keskus), is one of NATO Centres of Excellence, located in Tallinn, Estonia. The centre was established on 14 May 2008, it received full accreditation by NATO and attained the status of International Military Organisation on 28 October 2008.