Several of the biggest hedge funds on Wall Street have been targeted by a wave of cyber attacks, putting the industry on high alert to the risk of vulnerabilities in their software systems. Billionaire Steve Cohen’s Point72 and Ken Griffin’s Citadel were among the hedge funds that were targeted by audio “phishing” attacks, attempts to obtain private information through phone calls and similar means, in recent days, according to people familiar with the matter. Millennium Management was also targeted by cyber attacks, according to a person familiar with the matter. All of the firms run complex risk systems with confidential trading information and manage tens of billions of dollars, making them prime potential targets for cyber criminals.

Full report : Point72 and Citadel among firms hit by audio phishing schemes.