I'm currently at 8652-42 Bonshaw Parade in Mississauga and I think I've stumbled upon something huge

I’m trying to post this from my laptop because the internet isn’t working on my phone and the Wi-Fi’s not working. It’s midnight here and my husband wanted me to check the router and I went and checked, but it didn’t turn on. I switched the plug and it turned on, but the internet still wasn’t working so I checked the router and it was flashing red, which is the universal sign for no internet. I was about to give up when I plugged it into the wall and it finally worked. I tried logging in to check the password and it was wrong, so I hit the reset password button and it took me to a fake site asking for my username and password, as well as my husband’s username and password. I’m not stupid; I knew it was a phishing scam. But something strange happened. When I went to go back, the page was frozen and a message on the top of the page said “Welcome home, I’ve been waiting for you.” I freaked out and closed my laptop and went to go tell my husband and he didn’t believe me, so I showed him and he said it was nothing. But I know it was something. Has anyone else experienced this? If so, how did you get out of it?