Technology | cybercrime NASDAQ Hackers Spied on Company Directors Malware gave hackers access to corporate communications By Rob Quinn Posted Oct 21, 2011 1:40 AM CDT Updated Oct 21, 2011 2:05 AM CDT Copied Hackers slipped past NASDAQ's billion-dollar defenses several times last year. (AP Photo/Kathy Willens, File) Hackers who broke into the NASDAQ stock exchange's systems last year stole a lot more information than previously thought, sources close to the investigation tell Reuters. The hackers installed malware on a software program that corporate boards use to share documents and communicate with executives, which allowed them to spy on scores of company directors. "God knows exactly what they have done. The long term impact of such an attack is still unknown," says a cybersecurity expert with experience protecting financial institutions. It's not clear how long the hackers had access to NASDAQ's systems before the attack was discovered late last year. The chief of the National Security Agency and US Cyber Command says the agency is working with NASDAQ to fend off further attacks. Read These Next A Virginia politician was set on fire at his office. One wrong step costs teen at Yellowstone. This Fed decision was unlike any other in decades. An arrest has been made in the Devil's Den murders. Report an error