Thirty-three countries are attending NATO’s largest ever cyberdrill in Estonia, focusing on malware in tablets, AP reported. US Navy Cmdr. Robert Hoar, who heads the five-day Cyber Coalition 2015 exercise, said Thursday that scenarios do not include “attacking or defending.” Participants have been provided realistic “storylines” that must be solved, including how infected devices may compromise data privacy for staff of the alliance. The drill is held at the alliance’s cyber exercise range in Estonia’s second city, Tartu, and mainly aims at enhancing NATO member states’ ability to work together in a crisis situation. It’s the third time that such an event has been hosted by Estonia. NATO Cooperative Cyber Defense Center of Excellence, a training facility, is based in the Estonian capital, Tallinn.