Hours after Mavericks was released on Tuesday, Stanford University computer science PhD student Jonathan Mayer identified a change in the way the new operating system syncs Apple Contacts with Google accounts. Updates to address books in Mavericks are apparently now sent only in encrypted form, Mayer said, fixing a vulnerability that may have left some users’ information exposed to government spying.
“The speculation seems to be that this is one of the ways in which the NSA was able to collect Google address book information,” Mayer told HuffPost. “Certainly to the extent the NSA was doing simple keyword searches on the content of unencrypted Web traffic.”
Source: The Huffington Post