Is iCloud Keychain Secure?

Apple users have a variety of tools and services integrated into its ecosystem, such as Notes, Pages, Keynote, Reminders, Calendar, Mail, and more.
One of these services is iCloud Keychain, an integrated password manager within the Apple product suite to autofill your passwords when logging in to your account, share passwords with family, and sync your details across your Apple devices.
However, you may want to know is iCloud Keychain secure enough to handle this kind of sensitive information, and are there any risks of hackers accessing this data?
We will cover this topic throughout this article, as well as other essential information about iCloud Keychain. At the end, we will also offer an alternative to Big Tech services like Apple, which offer an expansive product suite to help protect your passwords and files online.
- What is iCloud Keychain?
- Is iCloud Keychain secure?
- How to set up an iCloud Keychain on iOS and macOS
- Pros of iCloud Keychain
- Cons of iCloud Keychain
- Can someone hack my iCloud Keychain?
- Internxt as an alternative to Apple
What is iCloud Keychain?
iCloud Keychain is a tool for Apple users to sync passwords and passkeys for iPhone, iPad, Mac, Apple Watch, and Apple Vision Pro.
If you’re wondering is iCloud Keychain safe to use, then the first thing to know is that your passwords aren’t exposed to Apple because your passwords are encrypted on your device before they’re sent to Apple’s servers.
Apple does not have the keys to decrypt them, so they cannot see your passwords, nor can anyone else.
iCloud Keychain consists of two services:
- Keychain syncing keeps your passwords, credit card info, and Wi-Fi credentials up to date across all your Apple devices. If you save or update a password on one device, it automatically appears on your other devices without having to manually update every device.
- Keychain recovery is how you can regain access to your saved passwords in case you lose your devices or forget your Apple ID password. You can set up a recovery contact or use a recovery key to unlock your keychain and restore your data.
Both of these services are designed to protect your devices in case your account is hacked, iCloud is compromised by external hackers or employees, or a third party accesses user accounts.

How iCloud Keychain works
Whenever you save a password, credit card, or Wi-Fi password on your device, your device generates encryption keys locally.
These keys are tied to your device’s Secure Enclave, the part responsible for handling sensitive data, such as encryption keys, passwords, Touch or Face ID. The Secure Enclave is kept separate from the main operating system, keeping it safe from hackers and malware.
Here are the steps involved when using iCloud Keychain on your devices:
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- You create a strong password, Wi-Fi credentials, or save credit card details on your device.
- Your device encrypts this data locally using a strong encryption key that only your device can access.
- The encrypted data is uploaded to iCloud over a secure connection. Apple cannot read it because it does not have the encryption keys.
- When you set up a new device, iCloud Keychain requires verification from a trusted device or a recovery key to make sure only you can access the data.
- The new device downloads the encrypted data from iCloud and decrypts it using its locally stored keys.
- Your device automatically fills in passwords, credit card info, or verification codes in apps, websites, or Wi-Fi logins.
- Any changes you make to the keychain on one device are re-encrypted and synced to iCloud, keeping approved devices updated without Apple being able to access the data.
Below is an example of iCloud’s Keychain in action when logging into a Facebook account.
Is iCloud Keychain secure?
Due to the extensive security protocols Apple implements in its services, then yes, when asking is iCloud Keychain secure you can be sure your details are secured because the information is encrypted on your device.

However, this service is not without its limitations, which we will cover in this article, so you get a more detailed view of iCloud Keychain.
How to set up an iCloud Keychain on iOS and macOS
iOS
Now that we have covered is iCloud Keychain secure, the next step is setting it up on your iPhone, iPad, or Apple Vision Pro from the steps below.
- First, sure you have the latest iOS update on your device.
- Enable 2FA
- Tap Settings, tap your name, then choose iCloud.
- Under Saved to iCloud, tap Passwords. In iOS 17 or earlier, tap Passwords and Keychain.
- Tap Sync this [Device] to turn on iCloud Passwords & Keychain. If asked, enter your passcode or Apple Account password.
macOS
For macOS, follow these steps.
- Choose Apple menu > System Settings.
- Click your name, then click iCloud.
- Click Passwords. In macOS Sonoma or earlier, click Passwords & Keychain.
- Click Sync this Mac, then click Done.
What happens if I turn off iCloud Keychain?
It’s always recommended to enable the most security for your device, but if you turn off iCloud Keychain, you should be aware of what happens when you turn it off.
- Your password, passkey, and credit card information are stored locally on your device.
- When you turn off iCloud Keychain or sign out of iCloud on your device, you won't have access to any of your shared password groups. Other members of those groups will still have access to the passwords and passkeys that you shared.
One final thing to note is that if you sign out of iCloud while the Keychain is turned on, you have the option to delete or keep your Keychain information.
If you decide to keep the information, passwords and passkeys are stored locally on your device, but aren’t deleted or updated if you make changes on other devices.
If you decide not to keep the information, passwords and passkeys aren’t available on your device, but an encrypted copy of your Keychain data is kept on iCloud servers. If you turn it back on, passwords and passkeys are synced to your device again.
Pros of iCloud Keychain
Integrates well with the Apple ecosystem
As an Apple user, the main benefit of Keychain is how well it integrates into the existing Apple ecosystem.
All your passwords, credit cards, and Wi-Fi passwords automatically sync across your devices and autofill in Safari without any additional setup, so it’s a convenient and consistent tool to have for Apple users, but less so for Windows or Linux users.
Free to use
As the Keychain feature integrates with all your devices, it’s available for all users with an Apple account for free, so if you don’t want to pay for a password manager, Apple includes this for free for all your devices.
Syncs easily
Once set up, all your credentials are updated in real time across all Apple devices linked to your Apple ID.
You don’t need to manually export or import anything, and if you make changes on your iPhone, for example, it will automatically appear on your iPad or Mac.
It also supports syncing across devices even when you set up a new iPhone or Mac, so you can get started immediately without losing any saved credentials.
Cons of iCloud Keychain
Limited to the Apple ecosystem
If you're an Android or Windows user, then you will have to find other ways to manage your passwords, as one of the biggest cons of iCloud Keychain is that it only works within the Apple ecosystem. You can use workarounds like third-party browsers or plugins, which can be unreliable compared to native Apple support.
Closed source
Many people value open source software thanks to its transparency and the ability for external researchers to check and verify the security or identify bugs. This is not the case with Apple, as it keeps its code hidden.
This means only Apple can fix security issues or bugs, requiring you to place your trust in this software.
Lack of password sharing
If you want to share passwords, then iCloud Keychain is also limited in this aspect. You can share passwords, but only with people assigned to your family group. If you want to quickly share a password with somebody, you would have to add them to the group, potentially giving them more access than you may be comfortable with.
Features
Compared to other password managers, Keychain has a more limited feature set, and there have been reports of inconsistency with passwords if you’re using iCloud Keychain outside the Safari browser.

Can someone hack my iCloud Keychain?
Having covered the topic of is iCloud Keychain secure, you may be wondering if it’s possible for someone to hack this service. As Keychain encrypts your passwords and other sensitive information on your device, hacking your information would be extremely difficult, but it could happen in the following circumstances.
- Phishing or malware: If you receive a phishing email stating there is a problem with your account, it could direct you to a malicious link that would install spyware or malware that could compromise your account’s security.
- Brute force or dictionary attacks could give hackers access to your device’s login password, but this can be prevented if you set up two-factor authentication.
- Another tool hackers could use is to expose security vulnerabilities from outdated software that could give them access to your account information. Apple will notify you of new updates, so ensure you always keep your device’s software updated.
So, the answer to the question is iCloud Keychain secure is yes, but you still need to take measures to protect your accounts and your data.
Internxt as an alternative to Apple
If you’re looking for an alternative to Big Tech providers such as Apple and would prefer a secure, European alternative, then Internxt offers a solid alternative to Apple with its advanced product suite.
Although it doesn’t have a password manager, Internxt offers numerous products to keep you and your device safe from hackers or other cyberattacks with its post-quantum encrypted cloud storage, VPN, Antivirus, and upcoming Meet and Mail products.
Compared to iCloud pricing plans, Internxt offers more affordable annual and lifetime plans with various additional features available to protect your privacy online, such as crypto payments, encrypted VPN, email, backups, and more.
Internxt also offers a free password generator tool to help you create strong passwords or passphrases, which you can then store in your preferred password manager.
Everything with Internxt is zero-knowledge encrypted due to our mission of providing services with total privacy for our users.
So if you’re looking for an addition to your password management without relying on Big Tech companies, try Internxt for free, or check out our pricing plans on our website.