The group, who call themselves Babuk, hacked into the Metropolitan Police Department computer system, stole private information and already released some information online. It's a story NBC Washington first reported in late April, when 500 pages of information about five officers were dumped online. Days later, Babuk removed the information from its site on the dark web, which cybersecurity experts say is typically a sign the hackers and the victim are negotiating a ransom. Late Monday, Babuk posted the files again, saying negotiations with the District came to a dead end. The hackers say they weren't offered enough money and if they don't get it Tuesday, more personal info will be released.