Kirill worked at various factories and companies selling industrial equipment. In 2015, he founded a small company, Grifkom-Vector, which sold assembly line components (it closed in 2021). Kirill writes music and film scripts and is also listed in the national register of copyright holders.
He was detained in January 2024: initially for several days for “petty hooliganism,” but then he was not released and a criminal case was opened.
In September 2024, Kirill was convicted of "calls to actions aimed at harming the national security of the Republic of Belarus" and sentenced to imprisonment. In February 2025, he was convicted again, this time under the articles "creating or participating in an extremist group" and "inciting hostility or discord," and also sentenced to imprisonment.
On December 13, 2025, he was released following a visit to Minsk by US President Donald Trump's special representative, John Cole, and taken to Ukraine.
