If you're worried about leaving a digital paper trail of text messages, download the free iPhone texting app, Cyber Dust, coming soon to Android.
When you send a message, it will self destruct after 30 seconds leaving absolutely no trace of it on your device.
If your friend doesn't get to the message for 12 hours, it will disappear and they'll miss it completely.
Also, the app will alert you if the person you're communicating with tries to take a screenshot of the message.
That same safety precaution is built into snapchat, a beloved free apps were photos and videos live on screen for 1 to 10 seconds.
A new feature snapshot story, where users can create many sequences of photos that exist for 24 hours before they disappear.
And finally, big time Instagram users concerned about privacy should check out the services new feature, Instagram Direct.
Send private photos or videos to just a select group of friends, up to 15 at a time.
In San Francisco, I'm Cara-Sue Boyd, cnet.com for CBS news.
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