Hey. idk how but my Instagram hacked. Brave is my main browser on PC and I use Brave for checking my Instagram plus I have 2FA on my account but somehow someone had access to my 2FA phone code that sent to my phone. (I never logged in my Instagram on my phone) so, that person has access to both my Instagram password and 2FA code(PC + Phone). (I checked app access on my phone and that was ok) actually my only use for my phone is Whatsapp + call and SMS. can you give me any advise? what I can do? I checked his/her session and my only clue is his/her phone model.
PS: I checked my PC with ESET and IOBIT and my phone access that was fine.