https://www.cnet.com/news/apple-meltdown-patch-sierra-el-capitan-older-operating-systems-macos-spectre/ >You want to stay safe from hackers while still using an older version of Apple's MacOS, the underlying software that runs its laptops and desktops. Now, there's a patch for that. >On Tuesday, the company released updates to the Sierra and El Capitan operating systems that will protect users from Meltdown, the design flaw that could let hackers access sensitive information from a computer's processor.  The update means more Mac users will be safe from a vulnerability that affects hundreds of millions of chips made by Intel over the past 20 years. Patches to operating systems are one of the key ways to protect computers.