Furthermore, as the Tallinn-based NATO Cooperative Cyber Defense Centre of Excellence suggested last week, the attack itself was so expensive and complex that it would impossible for individual hackers to launch it. Based on available data, including that obtained from international antivirus companies, the Ukrainian state security service argued last week that the attack was organized by the same hackers who were involved in the cyber attack against Ukrainian power grid in December 2016. Amidst the attack, NATO Secretary General Jens Stoltenberg claimed that, since the Warsaw NATO summit last year, cyber space has become a “military domain;” NATO member countries also agreed that cyber attacks against any member of the alliance would trigger the mutual defense clause in the same way as a conventional military assault. This constitutes a major change in NATO policy as past cyber attacks – partially due to their novelty – were not treated as seriously. Indeed, when Russia unleashed a series of large-scale cyber attacks against NATO member Estonia back in 2007, the alliance did not enact its mutual defense clause. It appears that the threshold for such an enactment would need to be high, and merely affecting companies operating in many NATO member countries is not a reason enough to enact Article 5 of the Washington Treaty. In reality, the consequences of cyber attack would have to be equivalent of an armed attack.NATO member countries also agreed that cyber attacks against any member of the alliance would trigger the mutual defense clause
Despite the growing support for the theory that the attack was orchestrated by state actors (and suspicions on who the state in question might be), NATO-led countermeasures for this particular attack may never happen. Failure to act may send a clear message to the attackers – you are free to violate a country’s sovereignty as long as you do it online. Such an eventuality could create grave disruptions for the global economy, and the NotPetya virus should serve as a wake-up call for the need for increased cyber security.
If such an investment is not made, the next cyber attack could have as its main targets other European countries or even NATO members.

Read more:
- Everything you need to know about the massive Petya cyberattack which started from Ukraine
- Ukrainian banks, enterprises, media and energy companies under powerful cyber attack, including Chornobyl NPP – LiveUpdates
- No more VPNs: Kremlin mulls limiting anonymising software
- Moscow expanding its cyber war against Ukraine
- Deception, Disinformation, and Doubt: Hybrid Warfare in Eastern Ukraine
- Putin conducts his foreign policy like a special op, Melnikov says
- Beware of Russian Cyber Warfare in 2016
- Cyber attacks have not hindered elections — SBU