In three years how I got started in cryptocurrency tried about ten different stock exchanges and it seems I was lucky that I did not fall on those that have been hacked, is now in general use Binance and Bittrex
Even though you are lucky, always be careful to secure your assets. Avoid phishing websites, install paid antivirus, try bookmarking websites, and save your password in a safe place.
I don't think installing antivirus could help you avoid phishing sites nor installing virus on your computer. It actually making it worse. After all, antivirus devs are the people to work on creating viruses in order for their business keep on track. Probably bookmarking, remembering the domain(.com, .org, .ph and etc), being aware on news about the exchange might help and secure yourself from phishing sites.
It does help a lot, if the antivirus you are using is gotten directly from the company and paid for. Majority of us use some of this cracked ones, and what is in it for the provider, if not to also give us a cracked version that has some of these phishing coding embedded in them. So the best way to get a good antivirus to protect our system is to buy and originally licensed one from the company.
The most important security for our personal wallet is to make use of very strong code that will make it very difficult for hackers to hack. We have some combinations of codes that it will take a hacker over 100 years to be able to crack.
For an addition, like what every wallet or exchange or bank said, keep change our password periodically and don't use same password between accounts. That will really help us even it is only small thing.