By Peter Rietveld and Diederik Perk. Levels of intensity are on the rise in the Crimea crisis with cyber-warfare being one of its main drivers. Dozens of networks in the Ukraine are infected, government systems among them, with malicious software that secretly performs surveillance, sustains privileged access to networks and databases and may even opt to shut systems down altogether. Alongside this advanced piece of malware, DoS and DDoS attacks continue to overwhelm servers hosting public and governmental platforms. Confirmed reports claim Ukrainian Members of Parliament have had their mobile phones disabled due to IP-based attacks. Most disturbingly, attacks that have not been registered yet, are posing the biggest threats.