How to spot spy gear and spy equipment: Tips for spotting spy equipment

Now Playing: How to stop an attack on your mobile phone and monitor its activitiesNow Playing: Is it worth it to buy a home security system?

Now Playing; What do you know about surveillance cameras?

Now Play: What to know about the NSANow Playing — Spy gear and surveillance equipment.

Now Playing — Surveillance cameras and spy gear.

Now Play: Surveillance cameras, spy gear, surveillance equipment, spy equipment.