Apple Shares Updated iOS Security Guide With Info on Face ID, Apple Pay Cash and More

Apple this afternoon published an updated version of its iOS Security white paper for iOS 11 [PDF], with information that covers features introduced in iOS 11.1 and iOS 11.2, like Face ID and Apple Pay Cash.

Much of the information in the document on Face ID has been previously shared by Apple in a dedicated Face ID white paper and accompanying support document that was released in September following the iPhone X's announcement, but the Face ID section is worth a re-read for those who are interested in Face ID security.

iphonextruedepthcamera 1
The document also covers several other topics, such as Shared Notes, CloudKit, Siri Suggestions, and more, with a full list of updates below:

Updated for iOS 11.2
- Apple Pay Cash

Updated for iOS 11.1
- Security Certifications and Programs
- Touch ID/Face ID
- Shared Notes
- CloudKit end-to-end encryption
- TLS
- Apple Pay, Paying with Apple Pay on the web
- Siri Suggestions
- Shared iPad

The document explains in detail how Apple features work and how they're protected. With Apple Pay Cash, for example, Apple says transaction data is stored for troubleshooting and fraud protection, while all money transfers are done securely using the Secure Element as with other Apple Pay transactions.

There are many small but significant details in the paper about all of the topics listed above, and for anyone who is interested in the security of their iPhones and iPads, it's worth checking out in detail.

Prior to today's update, the last update to the iOS security document was in July of 2017 following the release of iOS 10.3.

Related Forum: iOS 11

Popular Stories

Apple Logo Zoomed

Tim Cook Teases Plans for Apple's Upcoming 50th Anniversary

Thursday February 5, 2026 12:54 pm PST by
Apple turns 50 this year, and its CEO Tim Cook has promised to celebrate the milestone. The big day falls on April 1, 2026. "I've been unusually reflective lately about Apple because we have been working on what do we do to mark this moment," Cook told employees today, according to Bloomberg's Mark Gurman. "When you really stop and pause and think about the last 50 years, it makes your heart ...
wwdc sans text feature

Apple Rumored to Announce New Product on February 19

Thursday February 5, 2026 12:22 pm PST by
Apple plans to announce the iPhone 17e on Thursday, February 19, according to Macwelt, the German equivalent of Macworld. The report, citing industry sources, is available in English on Macworld. Apple announced the iPhone 16e on Wednesday, February 19 last year, so the iPhone 17e would be unveiled exactly one year later if this rumor is accurate. It is quite uncommon for Apple to unveil...
Finder Siri Feature

Why Apple's iOS 26.4 Siri Upgrade Will Be Bigger Than Originally Promised

Friday February 6, 2026 3:06 pm PST by
In the iOS 26.4 update that's coming this spring, Apple will introduce a new version of Siri that's going to overhaul how we interact with the personal assistant and what it's able to do. The iOS 26.4 version of Siri won't work like ChatGPT or Claude, but it will rely on large language models (LLMs) and has been updated from the ground up. Upgraded Architecture The next-generation...
iOS 26

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by
While the iOS 26.3 Release Candidate is now available ahead of a public release, the first iOS 26.4 beta is likely still at least a week away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...
iphone 17 pro dark blue 1

iPhone 18 Pro Max Rumored to Deliver Next-Level Battery Life

Friday February 6, 2026 5:14 am PST by
The iPhone 18 Pro Max will feature a bigger battery for continued best-in-class battery life, according to a known Weibo leaker. Citing supply chain information, the Weibo user known as "Digital Chat Station" said that the iPhone 18 Pro Max will have a battery capacity of 5,100 to 5,200 mAh. Combined with the efficiency improvements of the A20 Pro chip, made with TSMC's 2nm process, the...

Top Rated Comments

EdT Avatar
105 months ago
Thread will be filled with unrelated complaints about macOS security.
And it was the next post after yours.
Score: 10 Votes (Like | Disagree)
Chazzle Avatar
105 months ago
The dumb buyers will trust anyone with their face data.... some random chinese company where your face data will be shared around online.
Huh, didn’t realize Apple was some random Chinese company that shares your data online.
Score: 9 Votes (Like | Disagree)
OldSchoolMacGuy Avatar
105 months ago
Thread will be filled with unrelated complaints about macOS security.
Score: 8 Votes (Like | Disagree)
SecuritySteve Avatar
105 months ago
WHOA. Huge deal here that everyone seems to be overlooking. Page 73 in regards to the Apple Bounty for vulnerability researchers (like me) now no longer only applies to Apple partners. This opening up of the system is a big change from when Apple first announced this at DEFCON.
Score: 5 Votes (Like | Disagree)
341328 Avatar
105 months ago
The dumb buyers will trust anyone with their face data.... some random chinese company where your face data will be shared around online.
Score: 2 Votes (Like | Disagree)
Baymowe335 Avatar
105 months ago
Hardly anyone will read the entire pdf but almost everyone will have strong opinions on Apples ability to innovate, secure, and write software.
Score: 2 Votes (Like | Disagree)