There are many different kinds of dangerous websites out there.
One common internet scam is “phishing”. These are malicious websites that are designed to look identical to popular sites like Facebook or Twitter or even your online banking portal. When you go to input your login information, you’re actually inputting your information into the hacker’s website (not the website you were trying to visit), so the hacker now has your login details.
Other dangerous sites have “drive-by downloads” which means that simply looking at a website or clicking a pop-up window can trigger a malware download. Hackers can then steal your private information or even gain complete access to your computer without you even knowing.
And then there are websites that look very dangerous — they make loud noises and flash text that says your computer is infected with malware and you need to call a certain number to fix the problem. BUT THESE ARE ALWAYS SCAMS! Just close your browser and the popup notification will go away.