Husarov worked in NABU’s classified D-2 unit.
This news follows three other individuals exposure as members of this same network, SBU reported on Sept. 8.
The investigation showed that their operations were overseen by Igor Yegorov, an officer in the 1st Directorate of Russia’s FSB Counterintelligence Operations Department. Yegorov allegedly began building this network back in 2009 during frequent inter-agency visits to Ukraine.
The first of Yegorov’s associates to be arrested was SBU Major General Valerii Shaitanov in 2020. At the time, Shaitanov was allegedly plotting terrorist attacks in Ukraine and planning to assassinate a well-known volunteer soldier, SBU added.
Later, the SBU identified another FSB agent — Dmytro Ivantsov, former deputy head of security for ex-president Viktor Yanukovych.
In February 2014, Ivantsov helped Yanukovych flee to Russia. He remained in the Crimea and joined Russian occupying forces. He is now hiding in the temporarily occupied peninsula and allegedly oversees subversive operations involving other Russian agents in Ukraine.
In 2024, the SBU exposed a third member of the cell — a National Guard soldier who, over several years, provided Ivantsov with information about Ukrainian activists, officials, POWs, and consequences of Russian strikes.
SBU believes Husarov was likely recruited as early as 2012. They say he continued sharing information with Ivantsov even after the latter publicly joined the Russian side following Crimea’s illegal annexation. The two reportedly resumed correspondence three days after Russia’s sham referendum in 2014.
According to the SBU, the NABU officer transmitted restricted-access data to Ivantsov more than 60 times. He also allegedly gathered personal information on Ukrainian law enforcement and other individuals who were targeted for Russian recruitment or information operations.
Husarov has been formally charged under Articles 111 (treason) and 362-3 (unauthorized handling of restricted data) of Ukraine’s Criminal Code. The charges carry a maximum sentence of 15 years.
The SBU added that Major General Shaitanov has already been sentenced to 12 years in prison, and the National Guard officer remains in custody.
"To be clear: this criminal case involves a specific individual at NABU and is not related to the institution’s broader efforts," the agency wrote.
"SBU remains committed to constructive cooperation in strengthening national institutions, removing Russian influence, and reinforcing Ukraine’s independence."