iOS 10 Beta Features Unencrypted Kernel Making it Easier to Discover Vulnerabilities - MacRumors
Skip to Content

iOS 10 Beta Features Unencrypted Kernel Making it Easier to Discover Vulnerabilities

Apple's iOS 10 preview, seeded to developers last week, does not feature an encrypted kernel and thus gives users access to the inner workings of the operating system and potential security flaws, reports MIT Technology Review. It is not known if this was an unintentional mistake or done deliberately to encourage more bug reports.

ios10

Security experts say the famously secretive company may have adopted a bold new strategy intended to encourage more people to report bugs in its software--or perhaps made an embarrassing mistake.

In past versions of iOS, Apple has encrypted the kernel, aka the core of the operating system, which dictates how software uses the iPhone's hardware and keeps it secure. According to experts who spoke to the MIT Technology Review, leaving iOS unencrypted doesn't leave the security of iOS 10 compromised, but it makes it easier to find flaws in the operating system. Security flaws in iOS can be used to create jailbreaks or create malware.

The goodies exposed publicly for the first time include a security measure designed to protect the kernel from being modified, says security researcher Mathew Solnik. "Now that it is public, people will be able to study it [and] potentially find ways around it," he says.

Apple has declined to comment on whether the lack of encryption was intentional or a mistake, but security expert Jonathan Zdziarski believes it was done by choice because it's not a mistake Apple is likely to have made. "This would have been an incredibly glaring oversight, like forgetting to put doors on an elevator," he told MIT Technology Review.

He further suggests Apple may have chosen this route to prevent the hoarding of vulnerabilities like the one that was ultimately used by the FBI to break into the iPhone 5c of San Bernardino shooter Syed Farook and to have more people looking at the code to discover latent security flaws.

Related Forum: iOS 10

Popular Stories

iphone 16e usb c feature

Apple Begins Selling a $419 iPhone

Monday July 6, 2026 6:29 am PDT by
Apple recently added the iPhone 16e to its refurbished store, with U.S. pricing starting as low as $419 for a model with 128GB of storage. Originally released in February 2025, the iPhone 16e is a lower-end device with a 6.1-inch OLED display, an A18 chip with 8GB of RAM for Apple Intelligence support, a single 48-megapixel rear camera, a 12-megapixel front camera, a USB-C port, an Action...
iphone 17 ceramic shield

iPhone 18 With 9GB RAM Still Won't Support Two New iOS 27 Features

Friday July 3, 2026 12:10 pm PDT by
The lower-end iPhone 18 and iPhone 18e will be equipped with 9GB of RAM, up from 8GB in the iPhone 17 and iPhone 17e, according to supply chain analyst Ming-Chi Kuo. In a social media post, Kuo said the 1GB increase in RAM will ensure that Apple Intelligence features continue to run smoothly on the pair of devices. The higher-end iPhone 18 Pro, iPhone 18 Pro Max, and foldable "iPhone Ultra...
iPhone X 2022 Upload

'iPhone Ultra' Likely to 'Repeat the iPhone X Story' With Delayed Launch

Sunday July 5, 2026 10:28 am PDT by
Apple will likely "repeat the iPhone X story" by unveiling its foldable iPhone at the same time as the iPhone 18 Pro and iPhone 18 Pro Max, but starting foldable iPhone pre-orders at a later date, according to analyst Ming-Chi Kuo. Kuo today said manufacturing challenges have limited early production of the foldable iPhone, which will reportedly be named iPhone Ultra. As a result, he...

Top Rated Comments

131 months ago
A part of me believes that Apple wants at-least 1 jailbreak per iOS release. Where would they get ideas for future iOS versions from if it weren't for the jailbreak community?
Score: 21 Votes (Like | Disagree)
131 months ago
If the next beta has it encrypted, it was a mistake. If it's open, it was on purpose.
Score: 14 Votes (Like | Disagree)
keysofanxiety Avatar
131 months ago
Something as big as this wouldn't have been a mistake or oversight.
Score: 12 Votes (Like | Disagree)
131 months ago
expert Jonathan Zdziarski believes it was done by choice because it's not a mistake Apple is likely to have made
I'm voting for a mistake.
Score: 9 Votes (Like | Disagree)
kgellci Avatar
131 months ago
What the last two posts said above. Someone just got fired. This is huge.

There are going to be emergency meetings for months, maybe years. I wouldn't be surprised if TC is ultimately canned over this by the board after all the chips fall.
Let's pretend this was an engineering mistake, why on earth would Time Cook get fired over it? I don't think Tim Cook even knows how the iOS build process works, let alone be responsible for a mistake in it.
Score: 6 Votes (Like | Disagree)
131 months ago
Do people still jailbreak these days? If so, what specifically for?

I personally no longer found a need to jailbreak after around iOS 7 or 8, so I'm just wondering what people still deem as missing.
Score: 6 Votes (Like | Disagree)