According to the Global Cybersecurity Index 2017 conducted by the International Telecommunication Union (ITU) Estonia ranked fifth in world and first in Europe in cybersecurity. This is an excellent result placing Estonia ahead of its Nordic neighbours. Norway ranked 11th in the index, Finland 16th and Sweden 17th. In total the ranking included 195 countries.
The full report can be found here: Global Cybersecurity Index 2017