The key challenge is that the cyber world has become so vast. Before, most cyber security issues revolved around computers. You’d get a virus, and it needed to be removed. Now, thanks to the Internet of Things(IoT), almost everything has a network connection. 33Fridges are connected to the internet, we carry phones in our pockets that are like mini-computers, etc. So, the risk of cyber threats is greater than ever before. Plus, criminals are getting smarter. They’re bypassing old security measures - like firewalls - and coming up with new ways to hack into systems. They’re evolving, and cyber security faces a challenge to match this.