Ukraine's defense contractors are being targeted by Russian hackers, according to the country's Computer Emergency Response Team (CERT-UA).
The hacking group UAC-0185, also known as UNC4221, is behind the attacks.
The group has been using phishing emails, pretending to be the Ukrainian League of Industrialists and Entrepreneurs, to target employees working for Ukraine's defense contractors and defense forces.
Cybersecurity experts have previously linked this hacking group to the Russian government.