You pick up your phone, you make a call, and you probably think your conversation is private. Most of us take it for granted. Our cell phones are no longer as secure as we once thought.

Now, there’s a website that allows someone to download software to spy on cell phone conversations and messages. It downloads right into your cell phone and it allows someone to eavesdrop, see your text messages and read your e-mails. Every time that target phone receives a call or text, it alerts the phone of the spy.

“That would be creepy," says Jon Comiskey. The 14-year-old says he doesn’t think anyone should listen in on his phone conversations.

Autumn Nelson agrees, "Ridiculous, it's ridiculous."

“Overall, I think this is a very dangerous software capability. I think this is an invasion of privacy," says Jennifer. The software was downloaded on her fiancee's phone. She receives a text when he makes a call and is able to listen in. "I just can't believe that they have no clue that I'm now listening to this conversation."

One of the websites that sells the spyware says it's a way to catch a cheating spouse or keep tabs on children. “There's constant updates in phones because people are trying to hack into them and do certain things like that. Those updates in security are to get people covered and protected. All the major carriers are on top of that hopefully," says Dan Cory, a manager with Car Toys.

One way to protect your phone: don't let it out of your sight. The spyware can only be installed if it is physically downloaded onto the phone and it takes about 15 minutes to do so.

Colorado Springs police say they're looking into the legality of something like this.