Born on October 23, 1967 in Poltava. In 1989 graduated from the Poltava Higher Military Academy for Communication, in 1998 – from the Military Academy for Communication named after Soviet Union Marshall S.M. Budenny, in 2005 – from the All-Russian State Academy for Taxation of the RF Ministry of Finance.
From 1989 to 2003 held different senior positions in the Armed Forces of the Russian Federation.
Started his service in the Ministry of Internal Affairs as Senior Specialist of the Communication and Automation Administration of the Logistics Service of the MIA of Russia.
Has worked at the MIA Department of Information Technologies, Communications and Information Protection from the day of its creation.
Was appointed Chief of the MIA Department of Information Technologies, Communications and Information Protection by Presidential Decree number 174 dated April 6, 2015.
Subject to Decree of the President of the Russian Federation No. 276 dated 11.06.2016, Sergey Lyashenko was awarded the special rank of Lieutenant General of Internal Service.
Received the Medals of the Order “For Merit to the Fatherland” I and II classes, government awards.
Has a wife and a son.
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