The mastermind behind a hosting service that allegedly helped criminals collect more than 5,000 bitcoin in ransom from hundreds of victims was indicted in federal court this week, Thursday. At current prices, that bitcoin would be worth more than $146 million.

Artur Grabowski's LolekHosted service operated for about a decade and advertised itself as a haven for "everything but child porn," according to Florida prosecutors. Clients allegedly used the hosting service to deploy that infected around 400 networks around the world. Ransomware attacks typically lock and encrypt the data on an organization's computers so they're unusable until the victim pays a fee.

Grabowski and his co-conspirators allegedly refused to cooperate with law enforcement requests, protected from takedowns, and profited immensely from the service.

Grabowski was charged with computer fraud, wire fraud, and conspiracy to commit international money laundering.

Grabowski himself is also the subject of a $21.5 million seizure order.

The indictment against the Grabowski was unsealed in Florida court Wednesday. Grabowski remains at large.

Three other unindicted and unnamed co-conspirators were also involved in the alleged scheme, prosecutors said in the charging document.

His "100% privacy hosting" service was seized Tuesday by the IRS' Criminal Investigation unit and the Federal Bureau of Investigation. Grabowski, a Polish national, faces a maximum sentence of 45 years, if he is ever detained and convicted.

Federal prosecutors have stepped up their efforts to curtail . Earlier this year, the Justice Department focused on combating cyber national security threats.

A string of ransomware prosecutions have also been unsealed in U.S. courts, although with perpetrators scattered , it's unclear how many will face time behind bars.

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