And despite the nefarious nature of the school system’s lockdown, there is no criminal investigation into the matter because solving this crime is “impossible,” said Interim Leominster Police Chief Michael Goldman.

“It’s something likely to come from out of the country, (we) can’t trace it,” Goldman told WBZ-TV’s David Robichaud.

The police chief said he wasn’t told what types of school district files were locked down. He said this was “straight up decryption” and no data mining. School employees are locked out of their own system.

The school e-mail system is also down, and school employees are using their Gmail accounts as backup to communicate with one another, he said.

Leominster Schools Superintendent Paula Deacon said in a statement that the Bitcoin ransom was paid following the cyberattack, which occurred April 14.

The school district is waiting for its system “to be fully restored,” she said.

Source: School district pays $10,000 Bitcoin ransom to hackers after cyberattack