I know that password_reset hooks:
Runs after the user submits a new password during password reset but before the new password is actually set.
but there is a similar hook AFTER the new password is actually set?
EDIT: It would be logical to use profile_update but I tried, and profile_update seems not get called in case of password change for a 'lost password' procedure, for example. My real problem is auto login after password reset, and the only solution found till now, was using password_reset hook calling manually a wp_set_password before executing my code, so to be sure that password gets changed and THEN my code gets executed. This is not a clean procedure, and I am wondering if there is a solution that is less 'hacky'... I searched a lot, looking at every action hook in wordpress doc, but i can't find a proper solution.