Whether you’re new to iOS, or just want to pick up some useful tips and tricks, we’re here to help. This is iOS Advice.

Passcode Lock is a very useful feature to keep others out of your device. The downside is, certain features like Siri, Passbook, and Reply With Message are still available unless you disable them.

Leaving these features enabled will allow others to invoke Siri to make a call and send a messages, or even reply to an incoming call with a custom message when your device is locked with a passcode.

If you’d like to learn how to disable these features, watch the video or follow the steps below:

http://www.youtube.com/watch?v=ZpNsGWadyyI

Note: These options are new in iOS 6.

Step 1: Go into the Settings app on your device and tap on General.

Step 2: Next, scroll down to Passcode Lock and tap on it.

Step 3: Under the “Allow Access When Locked” section, use the toggle switches to disable specific features. You have the option to disable Siri, Passbook, and Replay With Message.

Unless you disable these features, they will still function when your device is locked with a passcode. Setting these options will help increase the security of your device and personal information.

Now that you’ve learned how to secure your device’s features with Passcode Lock, if there’s something else you’d like to see on iOS Advice, please let us know. Send us an email with your question or comment and we might feature your suggestion in a future article. If you need a little more advice, check out our other helpful tutorials.