For several years, a professional poker player committed fraud against other players after installing a spy program on their computers.
On Monday, the Copenhagen City Court ruled in a sentence that the man has been sentenced to unconditional imprisonment for two years and six months.
The convicted person also confiscated DKK 26 million, city court reports.
The criminal case was launched in May and is about the man's activities in relation to other players from 2008 to 2014.
The defendant is largely convicted of the charge of fraud and hacking.
The illegal profits that are confiscated are estimated at DKK 26,376,929 ($3.93 million US dollars).
At the sentencing, the court stated that imprisonment for three years is actually an appropriate penalty. But six months have been deducted from the sentence because the case has been long overdue, said the prosecutor in the case, Lisette Jørgensen.
The defendant has been protected by name bans, and this continues to apply, the prosecutor said.
The man on the spot has appealed to the Eastern Lands Court, where he demands an acquittal.
In a previous hearing, it emerged that it was his old friend who went to the police with the unusual review.
Three witnesses - one man and two women - have told the court that the man admitted to them that they have installed the spyware on other players' computers.
The confession fell during a stroll by one of the lakes in Copenhagen.
"He says he installed the program to see my cards," said the male witness.
As previously mentioned, the convicted person has pleaded not guilty. About his career, he says he got a taste for betting money through card games in the mid-'00s.
Gradually he became so good at the game that he could make a living from it. He was completely engrossed.
"In the beginning, before I had a girlfriend, I probably played for periods of 16 hours a day. That was the first thing I did in the morning. Then I went back and forth between the computer and the toaster," he said.
According to the verdict, in addition to the $ 26 million, he has to pay almost $ 800,000 to a person.