World’s largest cyber defence exercise takes place in Estonia Posted on 28/04/201728/04/2017 by Swissintell Locked Shields 2017, the largest and most advanced cyber defence exercise in the world, is taking place this week. It is organized by the NATO Cooperative Cyber Defence Centre of Excellence in Tallinn, Estonia. Source : NATO Share this: Print (Opens in new window) Print Email a link to a friend (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Share on WhatsApp (Opens in new window) WhatsApp Share on Telegram (Opens in new window) Telegram