Security researchers have reported eight different zero-day vulnerabilities in Apple s Safari browser. Details of these vulnerabilities, all rated high risk, have been sold to Tippingpoint’s Zero Day Initiative (ZDI), a program that purchases the rights to vulnerability information in exchange for exclusivity to broker fixes with affected vendors. TippingPoint ZDI is the sponsor of the annual CanSecWest Pwn2Own hacker contest, where the Safari browser is usually a weak target.
Source: https://threatpost.com/hacker-report-high-risk-flaws-safari-browser-030110/73606/