It's very important to bookmark the favourite sites you visit often. These crooks have devised a means of cleverly cloning these sites and it's very difficult to detect for the non-discerning
Even though you have bookmarked the original url, but if your computer has a virus it will be useless, because usually it will be redirected to another site without your knowing it. Many people say that the decentralized exchange is safer, but the fact is that hackers always have another ways to steal it.
It's always up to us to be extra careful pretty much in anything we do online. There are steps we can take and though it may take a little more time and effort, i think it's worth it when it's your privacy and assets that are on the line.