http://www.washingtonpost.com/blogs/the-switch/wp/2017/09/26/how-worried-you-should-be-about-the-security-flaw-in-apples-new-macos/ >Apple has acknowledged a reported security flaw with its latest free macOS update, High Sierra, which was released for download Monday. >As outlined over at Forbes, security researcher Patrick Wardle published evidence that it's possible for programs not approved by Apple to pick up passwords stored in a Mac's “keychain” — the place that stores passwords you've asked Apple to remember for you. There's no evidence that anyone has used this attack, but it is a bit of a bruise on the launch.