So some random person added me, asking me to add his friend, giving me the link to his profile. The link had steamcomnurlity, instead of steamcommunity. Seeing that it is late at night, I accidentally clicked it and logged in. I realized that it is a phishing link and clicked off and changed my password. Nothing's happened, so hopefully I'm safe. If not, what should I do? Beware of suspicious activity. I'm not trading late at night again.