OS X El Capitan LogoApple today released Security Update 2016-001 for OS X El Capitan users, introducing important security fixes to the operating system. Apple has also also introduced Security Update 2016-005 for OS X Yosemite users.

The Security Updates are available to all OS X Yosemite and El Capitan users and can be downloaded from the Mac App Store. Apple recommends all users install the update, and a full list of what's fixed can be found in the accompanying support document.

Most security updates are generally built into OS X updates as they are released, with separate security-only updates only being introduced when standard updates to the operating system are not expected. The release of a Security Update for OS X El Capitan suggests we may not see any new versions of the operating system ahead of the launch of macOS Sierra.

Update: Today’s security update fixes a series of critical kernel vulnerabilities that were recently patched in iOS with the release of iOS 9.3.5. On iOS devices, the vulnerabilities were part of a sophisticated jailbreak and malware attack that gave access to all of the functionality of an iPhone or iPad.

Citizen Lab and Lookout, who discovered the vulnerabilities on OS X and iOS, are credited with the fix.

Update 2: There's also a Safari 9.1.3 update to fix vulnerabilities in the Safari browser.

Top Rated Comments

tywebb13 Avatar
82 months ago
400 MB. Serious ****.
There are three parts to it. If you want to install the El Capitan one manually do it in this order:

Full Bundle Update:
http://swcdn.apple.com/content/downloads/50/35/031-75159/4vr88oyevm1r0p30oz6tx3ygo689whk1f4/FullBundleUpdate.pkg (18.8MB)

Firmware Update:
http://swcdn.apple.com/content/downloads/50/35/031-75159/4vr88oyevm1r0p30oz6tx3ygo689whk1f4/FirmwareUpdate.pkg (130.1MB)

Security Update 2016-001 10.11.6: http://swcdn.apple.com/content/downloads/50/35/031-75159/4vr88oyevm1r0p30oz6tx3ygo689whk1f4/SecUpd2016-001ElCapitan.pkg (265.2MB)

Last one requires a restart.

Here are the Yosemite ones:

Firmware Update http://swcdn.apple.com/content/downloads/31/50/031-74572/d6rg3uuihx9tfvsavc7i4vk1ay6q15hvmt/FirmwareUpdate.pkg (115.5MB)

Security Update 2016-005 10.10.5 http://swcdn.apple.com/content/downloads/31/50/031-74572/d6rg3uuihx9tfvsavc7i4vk1ay6q15hvmt/SecUpd2016-005Yosemite.pkg (352.1MB)

(no Full Bundle Update)

The Yosemite one is actually bigger than the El Capitan one.

Alternative links:

Security Update 2016-001 10.11.6: https://support.apple.com/kb/DL1891?locale=en_US

Security Update 2016-005 10.10.5 https://support.apple.com/kb/DL1890?locale=en_US

Notice that there ISN'T one for mavericks. So that's the end of mavericks as far as security is concerned. But they DID release a new safari for mavericks (and yosemite). Here they are respectively:

http://swcdn.apple.com/content/downloads/47/05/031-75479/smgdhqybff3jofycbq8uuciu5td7co45am/Safari9.1.3Mavericks.pkg

http://swcdn.apple.com/content/downloads/62/05/031-75481/c10gu5qoz8bbbk1jczzzvxm9ih4fupo0wz/Safari9.1.3Yosemite.pkg
Score: 6 Votes (Like | Disagree)
chrfr Avatar
82 months ago
The actual release notes for this update are here: https://support.apple.com/HT207130
This patches the vulnerabilities just patched in iOS 9.3.5.
Score: 5 Votes (Like | Disagree)
SandboxGeneral Avatar
82 months ago
introducing important security fixes to the operating system
I wish Apple would give more details on the "important security fixes" they deploy.
Score: 5 Votes (Like | Disagree)
KALLT Avatar
82 months ago
I wish Apple would give more details on the "important security fixes" they deploy.
They do in a separate note, always. It will appear here: https://support.apple.com/HT201222.
Score: 3 Votes (Like | Disagree)
LogicalVue Avatar
82 months ago
Be wary if you're using a Mac Pro with the Nvidia web drivers. This broke the current Nvidia driver (346.03.15f02) so no more nice 4K retina display until the Nvidia update is posted.
Score: 3 Votes (Like | Disagree)
Quu Avatar
82 months ago
I wish Apple would give more details on the "important security fixes" they deploy.
Here are the release notes for this specific update. [S]https://support.apple.com/en-gb/HT205731[/S]

EDIT:// It would appear these are actually not the correct release notes, why Apple reuses the same name for different security updates is beyond me.
Score: 2 Votes (Like | Disagree)

Popular Stories

General Black Friday Deals 2022 Green

All the Apple Black Friday Deals You Can Still Get

Friday November 25, 2022 4:40 am PST by
Although Black Friday is now technically over, many Apple products are still seeing major discounts through the weekend as we head into Cyber Monday. In this article, you'll find every Apple device with a notable Black Friday sale that's still available. We'll be updating as prices change and new deals arrive, so be sure to keep an eye out if you don't see the sale you're looking for yet. Note:...
iphone 14 pro hands snowflakes 1

Best Cyber Monday iPhone Deals Available Today

Wednesday November 23, 2022 1:55 pm PST by
Cellular carriers have always offered big savings on the newest iPhone models during the holidays, and Cyber Monday is no different. We're tracking notable offers on the iPhone 14 and iPhone 14 Pro devices from AT&T, Verizon, and T-Mobile. For even more savings, keep an eye on older models like the iPhone 13. Note: MacRumors is an affiliate partner with some of these vendors. When you click a...
maxresdefault

Nothing Phone 1 Displays AirPods Battery Level After Latest OS Update

Friday November 25, 2022 3:33 am PST by
Nothing Phone 1 users today began receiving the Nothing OS 1.1.7 update, which adds support for displaying the battery percentage of connected AirPods, amongst other improvements and bug fixes. If you own a Nothing Phone 1, you can check for the OTA update by going to Settings -> System -> System updates. Bear in mind that as support for displaying AirPods battery level is still an...
ipad holiday bulbs

Best Cyber Monday iPad Deals Available Today

Thursday November 24, 2022 12:25 pm PST by
Cyber Monday deals have been in full swing since Black Friday deals ended, and we're seeing solid discounts on Apple devices. We're highlighting the best sales for all of Apple's product lines, and in this article you'll find the best Cyber Monday sales on iPad, iPad Pro, iPad Air, and iPad mini. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make ...
airpods pro 2

Apple Engineer Addresses Lack of Lossless Support on New AirPods Pro

Friday November 25, 2022 2:58 am PST by
An Apple engineer has addressed the lack of lossless audio support in the second-generation AirPods Pro in a new interview. Current Bluetooth technology in the AirPods lineup means that Apple's audio products do not support Apple Music Lossless audio. Apple has previously hinted that it may develop its own codec and connectivity standard that builds on AirPlay and supports higher quality...
Cyber Monday Deals Feature 2022

Best Cyber Monday Apple Deals for AirPods, Apple TV 4K, iPad, More

Monday November 28, 2022 5:24 am PST by
Now that Black Friday is over, the internet's attention has shifted to Cyber Monday deals today. Of course, for Apple products this means that many of the deals you saw last week are basically the same today. Despite this repetition, it's a great chance for anyone who missed out on Black Friday deals to still get the year's best prices on many Apple devices. Note: MacRumors is an affiliate...
Apple Watch Ultra Oceanic Plus App

Apple Announces Oceanic+ App Now Available for Apple Watch Ultra

Monday November 28, 2022 6:11 am PST by
Apple today announced that the Oceanic+ app is available for the Apple Watch Ultra starting today. Designed by Huish Outdoors in collaboration with Apple, the app serves as a dive computer for recreational scuba diving at depths up to 40 meters/130 feet. Apple already offers a basic Depth app on the Apple Watch Ultra for viewing your current depth, maximum depth reached, water temperature,...
Three Biggest iPhone SE 4 Questions Feature

Three Biggest Questions About the iPhone SE 4

Saturday November 26, 2022 12:00 am PST by
While we already have some clear indications about what to expect from the fourth-generation iPhone SE, there are three major questions looming over the device at the current time. Chinese site MyDrivers and and leaker Jon Prosser believe that the iPhone SE is set to move to an iPhone XR-like design in its next incarnation, which would involve eliminating the Home button and adding a "notch" ...