Have i been hacked? Mac OS?

Ru
3

Unfortunately I suspect that I was the victim of a hacker attack. It started when I looked through my passwords on Safari and there I found my e-mail with a password that I almost always use, but I never signed up on this page and this page looked very dubious. You couldn't actually register there. Then I downloaded 2 anti virus programs, unfortunately I suspect that these were fake and when I allowed access my PC was completely tense. I removed all PW in Safari settings and completely rebuilt my PC. Then I logged into my iCloud again after the complete RESTART and there were no saved PWs on Safari settings, but then I went to the Internet pages and had to find out that all passwords were still suggested there when I specified, which I then manually remove all one after the other had to. You could only call up these passwords if you went to the site and then went to the key ring at PW. If you went to Safari under Settings and then to PW, however, not a single one was available. When I wanted to log in to my mail, for example, and passwords were suggested to me, I then removed all of them, that didn't work smoothly, sometimes I have to enter my password from the laptop, from time to time I have to remove things 3 times they were really gone, nothing is saved anymore, but I don't know whether someone might have access to my data and I don't know myself. What can I do?

Fl

In that case I would completely change all passwords and buy you a trustworthy virus protection (a computer expert told me that you can forget free ones). First the virus protection, then change the passwords.

Ru

Which virus protection would you recommend me

Fl

I have Kaspersky for Mac, it costs around 50-70 euro a year