The Hidden Backdoors Inside Millions of Smart Devices | WSJ (Level 1)

Many people have smart devices in their homes. These include smart cameras, TVs, and digital picture frames. But some cheap devices are dangerous. They have secret computer programs inside them. When you connect the device to your home internet, bad people can use it. A reporter bought some cheap picture frames and TV boxes online. He connected them to a test internet network. Very quickly, strangers started using his internet. They visited bad websites. They also tried to guess passwords for emails. Computer experts say this is a very big problem. Hackers use millions of these smart home devices together. They make the devices attack big websites and cause them to crash. This is called a cyberattack. To stay safe, you should be careful when you buy cheap smart devices online. They might let criminals into your home internet.