Your iPhone Fatal Security Flaw

If you recently changed your iPhone passcode, it is recommended to expire your old passcode to prevent it from being used to unlock your device.

With the introduction of iOS 17, a new feature called Temporary Passcode Reset allows the utilization of old passcodes to reset the current passcode and gain access to the device. This feature is intended to provide convenience if you need to remember a newly set passcode.

However, it is essential to note that if your previous passcode was compromised and there is a possibility that someone with knowledge of it can gain access to your device, this feature can be exploited to break into your phone. Once access is achieved, the thief can reset the passcode and completely lock you out.

Passcodes are retained for 72 hours after modification, which allows ample time for malicious activities. Fortunately, there is a straightforward and efficient method to invalidate your previous passcode and enhance the security of your device. Here’s how to expire old passcodes on iPhone:

Ensure that your device is running iOS 17 or a later version. If needed, refer to our comprehensive guide on updating an iPhone. Additionally, ensure you have changed your passcode within the past 72 hours.

1. Open the Settings app on your iPhone.
2. Navigate to the Face ID & Passcode or Touch ID & Passcode section.


To get started, access the Settings app on your device. From there, locate and select the option for Face/Touch ID & Passcode.

Next, you will be prompted to enter your current passcode.

To change your passcode, follow these steps:

1. When prompted, enter your current passcode.
2. Tap on “Expire Previous Passcode Now”.

To reset the temporary passcode, follow these steps:

1. Scroll down to the section labeled “Temporary Passcode Reset.”
2. Tap on “Expire Previous Passcode Now.”
3. Next, tap on “Expire Now.”

By performing these actions, you will successfully reset the temporary passcode.

Tap ‘Expire Now’ to confirm and ensure the security of your device. Rest assured, your iPhone is now safeguarded. Suppose you’re interested in further iPhone tutorials. In that case, we can assist you in transferring data from one iPhone to another seamlessly and looking to utilize your iPhone as a smart home display.

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