Corellium Accuses Apple of Using Lawsuit to 'Crack Down on Jailbreaking' - MacRumors
Skip to Content

Corellium Accuses Apple of Using Lawsuit to 'Crack Down on Jailbreaking'

Apple is currently involved in a lawsuit against Corellium, a mobile device virtualization company that supports iOS. Apple has accused Corellium of copyright infringement because Corellium creates software designed for security researchers that replicates iOS.

The lawsuit has been ongoing since August, but it is heating up after Apple amended its lawsuit in late December with a Digital Millennium Copyright Act (DMCA) filing, suggesting the Cupertino company believes jailbreaking is a violation of the DMCA. Corellium, says Apple, facilitates jailbreaking through its software.

corellium

A virtual ‌iPhone‌ on Corellium's website used as evidence in Apple's lawsuit against the company

Corellium's CEO Amanda Gorton has taken issue with Apple's new filing, and yesterday penned a missive lambasting Apple for its jailbreaking position. "Apple's latest filing against Corellium should give all security researchers, app developers, and jailbreakers reason to be concerned," reads the letter's opening statement.

The filing asserts that because Corellium "allows users to jailbreak" and "gave one or more Persons access... to develop software that can be used to jailbreak," Corellium is "engaging in trafficking" in violation of the DMCA. In other words, Apple is asserting that anyone who provides a tool that allows other people to jailbreak, and anyone who assists in creating such a tool, is violating the DMCA. Apple underscores this position by calling the unc0ver jailbreak tool "unlawful" and stating that it is "designed to circumvent [the] same technological measures" as Corellium.

Gorton accuses Apple of using its Corellium lawsuit to "crack down on jailbreaking" and claims Apple is seeking a precedent to eliminate public jailbreaks. She says that Corellium is "deeply disappointed" by Apple's "demonization of jailbreaking" as developers and researchers "rely on jailbreaks" to test the security of their own apps and third-party apps. She further claims that Apple has benefited from jailbreaking by turning jailbreak tweaks into iPhone features.

Not only do researchers and developers rely on jailbreaking to protect end users, but Apple itself has directly benefited from the jailbreak community in a number of ways. Many of the features of iOS originally appeared as jailbreak tweaks and were copied by Apple, including dark mode, control center, and context menus.

In addition, jailbreak creators regularly contribute to the security of iOS. The developer behind the unc0ver jailbreak was acknowledged and credited by Apple for assisting with a security vulnerability in the iOS kernel - a vulnerability he discovered while using Corellium.

Gorton says that Corellium is prepared to "strongly defend" against Apple's attack, and looks forward to sharing a formal response to Apple's claims in court.

Apple is continuing to seek a permanent injunction to prevent Corellium from offering a product that replicates the iOS operating system. Apple wants Corellium to destroy all infringing materials that it has collected, and pay Apple damages, lost profits, and attorney fees.

Popular Stories

iOS 18 Siri Personal Context

Siri AI Settlement Website Now Live: Apple to Pay Some iPhone Owners

Sunday September 20, 2026 7:24 pm PDT by
In May, Apple agreed to pay $250 million to settle a U.S. class action lawsuit over Siri AI's delayed launch, and the settlement website is now live. Apple will pay an estimated $25 per eligible iPhone to eligible customers, who can submit a claim via the settlement website between September 21 and December 21 of this year. The exact payment may be higher or lower than $25 depending on the...
apple pay feature dynamic island

Banks and Credit Unions to Team Up Against Apple Pay Fees

Friday September 25, 2026 12:22 pm PDT by
An antitrust lawsuit accusing Apple of blocking tap-to-pay competition is moving forward and will see banks and credit unions able to band together to sue Apple. U.S. District Judge Jeffrey White this week certified a class in the lawsuit. It will include any U.S. entities that issued any payment card enabled for Apple Pay and paid Apple a fee for Apple Pay transactions on that payment card. ...
apple watch series 9 display

Apple Ordered to Pay $5.7 Billion Over Haptic Patent Infringement

Monday September 28, 2026 5:09 am PDT by
Apple has been ordered to pay $5.7 billion in damages to Taction Technology after a federal jury found it had infringed two of the haptics company's patents, reported CNBC over the weekend. Taction sued Apple in 2021, arguing that Apple's Taptic Engine in the company's Apple Watches and iPhones uses its inventions without proper license or authority. Apple initially had the case dismissed in ...

Top Rated Comments

CarlJ Avatar
88 months ago
Headline has a typo. It should read:

* Corellium Attempts to Rally Support from Jailbreakers for Corellium's Indefensible Business Practices
Score: 24 Votes (Like | Disagree)
69Mustang Avatar
88 months ago

So here's the deal: do we want our phones to be secure or not? If we want them to be uncrackable, then we should support Apple on this lawsuit. If we really want to jailbreak them (for what?), then we are giving up security. Cant have both.
Ha! That premise is both false and silly... mostly silly. There never has been, nor will there ever be "uncrackable". Supporting Apple won't change that at all. Most understand that. So by all means, support Apple if that is your want. Just please don't use that "uncrackable" nonsense as a reason. Security is a game of one-upsmanship. Security get's better by being challenged out in the open.

Not really sure how, when, or where you formed your opinion about jailbreaking and having security. It's just plain wrong. You can have both. Evidence is the fact that we do have both and have had both for years. Probably gonna continue to have both for the foreseeable future.
Score: 18 Votes (Like | Disagree)
lockhartt Avatar
88 months ago
I’m definitely with Apple on this one. I’m tired of companies that exist simply to exploit or steal the intellectual property of others.
Score: 14 Votes (Like | Disagree)
69Mustang Avatar
88 months ago

They created an emulator to duplicate iOS. Then they lied by trying to say this is about jailbreaking and accusing Apple of being against jailbreaking. That’s NOT what Apple is saying.

What Apple says is Corellium can’t make an iOS emulator. It’s irrelevant if someone uses that emulator to aid in making a jailbreak, to do security research or just to test new features.
Thanks. I understand exactly what they did. I even read it in the article too. :D My question to Carl was what does he think was indefensible.


Why would anyone who would has any clue what jailbreaking even is want to use an iOS device in the first place? Just use Android where you can customize and side load all you want. iOS is the property of Apple. No one has the right to modify it as they wish.
That's akin to saying if you want your Mustang faster, go buy a Hellcat. :rolleyes::D Telling someone to move to Android doesn't actually sate their desire to modify iOS.
Score: 11 Votes (Like | Disagree)
MikeMo Avatar
88 months ago
So here's the deal: do we want our phones to be secure or not? If we want them to be uncrackable, then we should support Apple on this lawsuit. If we really want to jailbreak them (for what?), then we are giving up security. Cant have both.
Score: 11 Votes (Like | Disagree)
ActionableMango Avatar
88 months ago

Curious. What exactly do you think is indefensible about their business practices?
It is completely indefensible. So much so I don't even understand why there is controversy.

If I programmed an exact emulator of Adobe Photoshop, including every feature, function, and look and feel, and even branding and logos, copied to the exact pixel, there would be no controversy about whether or not I was profiting from illegal theft of Adobe's IP.

Correllium has done this. Not just for one application like my Photoshop example, but for an entire operating system AND all of the default applications included with that operating system.

I don't understand how this is legally defensible. Maybe it is morally defensible to the type of people that believe all software should be free, but that is a philosophical opinion that I don't agree with.

And the worst part here is, it's very unlikely Corellium created this code from scratch, like my Photoshop example. Apple has accused Corellium of outright copying iOS code. I haven't seen where Corellium has refuted this. In fact, they bragged it is an exact copy of iOS including undiscovered vulnerabilities. So this is even worse than my example of creating a duplicate from scratch. This appears to be outright stolen source code, repackaged and resold for profit.

So to modify my example, if I stole Adobe's source code for Photoshop and then sold exact functioning copies of it, there would again be no controversy. Correlium stands accused of this.
Score: 9 Votes (Like | Disagree)
Latest Stories
iPhone 18 Pro's Triple Live Activity Support Comes With a Catch
iPhone 18 Pro's Triple Live Activity Support Comes With a Catch
1 hour ago
Apple's New CEO John Ternus is Making Product Design a 'Major Priority'
Apple's New CEO John Ternus is Making Product Design a 'Major Priority'
7 hours ago
Apple Hiring 'iCup' Specialist
Apple Hiring 'iCup' Specialist
8 hours ago
MacBook Pro With OLED Display Rumored to Be 'Significantly Lighter'
MacBook Pro With OLED Display Rumored to Be 'Significantly Lighter'
9 hours ago
Apple Event Reportedly Planned for October 13
Apple Event Reportedly Planned for October 13
10 hours ago
Amazon Launches Early Prime Day Discounts on AirPods, iPad, MacBook Air, and More
Amazon Launches Early Prime Day Discounts on AirPods, iPad, MacBook Air, and More
18 hours ago
AirPods Pro 3 Hit Record Low $179 Price During Early Prime Day Sale
AirPods Pro 3 Hit Record Low $179 Price During Early Prime Day Sale
18 hours ago
Top Stories: Apple Smart Home Launch on October 13, iPhone Duo Production Issues, and More
Top Stories: Apple Smart Home Launch on October 13, iPhone Duo Production Issues, and More
2 days ago
Apple Says iPhone 18 Pro Max Users With AT&T Cellular Issue Need to Have Device Replaced
Apple Says iPhone 18 Pro Max Users With AT&T Cellular Issue Need to Have Device Replaced
2 days ago
Apple Announces 'Full Disk Access' Changes on macOS Due to AI Agents
Apple Announces 'Full Disk Access' Changes on macOS Due to AI Agents
3 days ago
AT&T and Apple Just Took Steps Toward Fixing iPhone 18 Pro Max Issue
AT&T and Apple Just Took Steps Toward Fixing iPhone 18 Pro Max Issue
3 days ago
AT&T on iPhone 18 Pro Max Issues: 'We Are Working With Apple'
AT&T on iPhone 18 Pro Max Issues: 'We Are Working With Apple'
3 days ago
Upgrading From an Older Apple Watch? Here's How the New Features Stack Up
Upgrading From an Older Apple Watch? Here's How the New Features Stack Up
3 days ago
Beats 360 Cushion Kits and Apple Accessories See Early Prime Day Price Drops
Beats 360 Cushion Kits and Apple Accessories See Early Prime Day Price Drops
3 days ago
Apple Store in UK Reopening on iPhone Duo Launch Day
Apple Store in UK Reopening on iPhone Duo Launch Day
3 days ago
AT&T Acknowledges iPhone 18 Pro Max Issues: Update 'Immediately'
AT&T Acknowledges iPhone 18 Pro Max Issues: Update 'Immediately'
3 days ago
New 'AirFly Drive' Accessory Turns Wired CarPlay Into Wireless CarPlay
New 'AirFly Drive' Accessory Turns Wired CarPlay Into Wireless CarPlay
4 days ago
Apple Shares Photos Shot on iPhone Duo
Apple Shares Photos Shot on iPhone Duo
4 days ago
Apple Says iPhone Duo Has Replaceable 'Cover Layer'
Apple Says iPhone Duo Has Replaceable 'Cover Layer'
4 days ago
Apple's Smart Home Camera Will Apparently Have 'No Video Recording'
Apple's Smart Home Camera Will Apparently Have 'No Video Recording'
4 days ago
Apple TV Just Updated Its Selection of 'Bonus' Movies
Apple TV Just Updated Its Selection of 'Bonus' Movies
4 days ago
iPhone 18 Pro Colors Buyer's Guide: Which Should You Choose?
iPhone 18 Pro Colors Buyer's Guide: Which Should You Choose?
4 days ago
Early Prime Big Deal Days: Best Discounts on Accessories, TVs, and More at Amazon
Early Prime Big Deal Days: Best Discounts on Accessories, TVs, and More at Amazon
4 days ago
MacBook Pro With OLED Touch Screen Rumored to Launch in October or November
MacBook Pro With OLED Touch Screen Rumored to Launch in October or November
4 days ago
Apple's All-New Home Hub Rumored to Launch in These Four Colors
Apple's All-New Home Hub Rumored to Launch in These Four Colors
4 days ago
iPhone 18 Pro Aperture Control Goes Fully Manual in Halide 3.2
iPhone 18 Pro Aperture Control Goes Fully Manual in Halide 3.2
4 days ago
Apple Stores Receive 'Do Not Open' Boxes Ahead of Smart Home Products Launch
Apple Stores Receive 'Do Not Open' Boxes Ahead of Smart Home Products Launch
4 days ago
iPhone 18 Pro Sales Jump in China Ahead of iPhone Duo Launch
iPhone 18 Pro Sales Jump in China Ahead of iPhone Duo Launch
4 days ago
Apple TV Still Down for Some Users Following Apple Services Outage
Apple TV Still Down for Some Users Following Apple Services Outage
4 days ago
Microsoft 365 Work Accounts May Stop Syncing in Apple Mail
Microsoft 365 Work Accounts May Stop Syncing in Apple Mail
3 days ago