BlackBerry Messenger (or BBM) is the popular instant messaging platform that originated with the BlackBerry operating system. Since then it has been ported over to iPhone and Android devices as an app. Unfortunately, while BBM can connect you to friends who still use it, the app can also be a gateway for harassment by spambots or clingy exes. Here's how to get rid of pesky contacts on BBM for iPhone and Android.

1. Open BBM on your iPhone or Android phone. If the app didn't open to your contacts page, tap the Contacts button at the bottom left.

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2. Long tap the contact you wish to block.

3. Tap the trash can icon at the bottom of the options panel that slides in.

4. Select Delete And Ignore.

The offending person will be removed from your contact list and won't be able to send you messages.

How to Block Someone