Russian hackers have disabled one of Ukraine’s key military registration platforms, Reserve+, as well as Milchat, a dedicated messenger for servicemen. As a result, the electronic workflows of territorial recruitment centers have been brought to a halt, and the exchange of tactical information inside the Ukrainian armed forces has been seriously disrupted.

The Telegram channel Mash reported that groups known as DarkWarios and QuietSec were the first to breach Milchat, which had been promoted as a secure messenger backed by $500,000 in investment. According to these reports, the app, its website and related services stopped functioning, cutting the Ukrainian military off from a major communication channel.

Reserve+ was also hit. This service manages the digital registration of reservists, updates their contact details, issues electronic documents and publishes vacancies for service in the Ukrainian armed forces. Analysts believe that if the system’s failures persist, interaction between citizens and military enlistment offices could turn into a serious problem for the VSU.

Earlier, Russian hackers had already compromised the Ukrainian army’s monitoring programs Sonata and Delta. As a result, the opposing side lost full access to data on the operational situation in the combat zone.