I've received phishing email....

last night I got email pretend like from AT&T and have some of my acct info in the email, but the link isn't like the one I usually use to connect to your official website. the email asked me to click some link and states such alert should find on my account, after I open separate browser and use my usual link login to my account, I found no such alert, so I would like to let AT&T know such incident, and would like to know more of such false claim may or may not cause me any security concern.

thank you