mnemonic participates in NATO’s annual Locked Shields exercise
mnemonic contributed in both the planning and execution of Locked Shields 2025

This is the 15th time the NATO Cooperative Cyber Defence Centre of Excellence (CCDCOE) organises this realistic cybersecurity training for NATO and partnering cybersecurity defenders.
With over 4,000 participants, this is the world's largest and most complex cybersecurity training exercise, inviting nations, academia, international organisations, and industry partners to cooperate and enhance their skills while defending national IT systems and critical infrastructure. 17 multinational Blue Teams from 41 nations were part of this year's exercise, defending over 9,000 real-time attacks.
mnemonic was involved in creating the scenarios that the defending and attacking teams were challenged with, as well as technical platforms to be used in the exercise.
Our experts also joined the Norwegian and Danish Blue Team, bringing a wide range of expertise to an exercise focused on protecting critical infrastructure from simulated Red Team attacks.
We are happy to have had the opportunity to be part of this unique learning experience.