PRAGUE, Aug. 23 (Xinhua) -- A 20-year-old hacker from Ostrava was convicted of blackmailing Czech Prime Minister Andrej Babis and received a suspended sentence last week, said the court spokesman Lukas Delong on Thursday.

Two years ago, the man was repeatedly sending threats to the then Finance Minister Babis through social networks. Delong said the Ostrava District Court verdict had issued a 12-month sentence suspended for 24 months to the man. Besides, the state will forfeit his computer.

The young man said he was part of the hacker group Anonymous. He demanded that Babis cancel a part of the new lottery law. He presented photos of Babis's wife and his children. "If the EET (electronic sales registration) made it through, we will be tougher, quite brutally... this is the last warning," the youth wrote in one of his threats.

Later, the young man said he would publish the data of Babis's daughter on one of the erotic dating sites. Babis considered this as a serious harm to him.

The prosecutor also accused the man of having software for cyber attacks installed on his computer. In addition to Babis, the attacks also aimed the Czech Government Office and the Finance Ministry.