New Delhi, Aug. 11 -- Smart devices make life easier, but if they're connected to the internet, they can also be a doorway for hackers. Many people don't realise how easy it is for cybercriminals to break into a poorly secured gadget and once they do, they can steal personal data, spy on your home, or take control of other devices on your network.

Here are seven of the most vulnerable devices and how you can secure them.

1. Wi-Fi routers

Your Wi-Fi router is the gateway to your entire home network. If it's still using factory settings or outdated software, it becomes an easy target for hackers. Once compromised, attackers can monitor your online activity, steal personal data or even control other devices on your network.

How to secure...