I visited a fake popup website twice by mistake. Will this infect my Ubuntu system with any Trojan or AdWare? I'm afraid. I visited it yesterday and it asked for username and password. I rejected it and closed off that tab. Today, when I turned on my system, I had problems with logging in. I typed the correct password but Ubuntu said it was incorrect. I had to reset the password with recovery mode and delete old keyring logins and login to keyring with new password. Can I know why this is happening? Is it happening because I removed the CD drive from my computer to see if it was damaged and booted without the CD Drive? Please help. Thanks in advance.
Using Ubuntu Budgie 17.10 32bit.