The former deputy director general of BelTA for ideological work, he previously worked in Lukashenko's administration and even received awards from him.
The exact date of the former official's arrest is unknown. However , on September 8, 2021, law enforcement officials filed a report stating that "during a series of investigative operations, information was received that current BelTA employee Aderiho may be providing classified information about Alexander Lukashenko's work schedule to the Telegram channel 'Nik i Mike.'" The official was soon detained.
The case was handled by the State Security Committee. Aderiho was held in custody pending trial. Now, Aderiho has been convicted of passing official information under his control to a representative of the People's Anti-Crisis Management and the Telegram channel "Nik i Mike." The motive is "avoiding lustration after the change of power."
In addition to the prison term, Sergei was sentenced to a fine of 500 basic units (16,000 Belarusian rubles).
In October 2025, Sergei opened a business as a taxi driver . He may have been released early under the amnesty .
