Martin Shkreli raided his pharmaceutical companies to cover up his hedge fund trading losses, said federal prosecutors.
The U.S. Department of Justice's new policy restricts federal agents in their use of a surveillance tool that mimics cellphone towers.
Hackers accessed the earnings announcements of more than 100 companies and traded on the information.
Hackers duped the company, Ubiquiti Networks, into transferring money to accounts overseas.
FBI says Darkode was a "hornets’ nest” of cybercriminals that operated as a marketplace to buy and trade hacking tools.
More than 20 million people were affected by the data security breach at the Office of Personnel Management.
"The FBI and USSS (U.S. Secret Service) have received no reports that Carbanak malware has affected the U.S. financial sector," said U.S. authorities.
Partial account information for up to 10% of the bank's wealth-management clients was stolen and some of the data was posted online.
Sony Pictures Entertainment shut down its internal computer network last week to prevent the virus from causing further damage.
The Department of Homeland Security warns there has been a rise in "computer network exploitation and disruption by disgruntled or former employees."
To prevent white-collar crime, prosecutors are now focusing on raising shareholder ire.
