The group is alleged to have earned over $100 million by stealing and trading on corporate earnings announcements before they were made public.
The same hackers who hit Anthem, United Airlines and the Office of Personnel Management may have added American and Sabre to the list.
Massive amounts of data were stolen in a short period of time, according to news reports.
Malicious ads were found to be redirecting victims to the Angler Exploit Kit, according to Malwarebytes researchers.
Steve Grobman, Intel Fellow and CTO of Intel Security, discusses upcoming innovation in silicon that could have a huge impact on software security.
The data potentially exposed includes names, birthdates, Social Security numbers, lab results, medical conditions and health insurance information.
The stolen data includes flight manifests, which identify flights' passengers, origins and destinations.
The hackers say the attacks were launched to protest the TTIP and TPP, and to retaliate for the shooting of James Daniel McIntyre by Candian police.
The hackers are threatening to release all of the stolen data if the site isn't shut down.
The data potentially stolen includes names, birthdates, Social Security numbers and medical information.