Moderator, Iberia Airlines, Airport Lounges, and Ambassador, British Airways Executive Club
Join Date: Feb 2010
Programs: BA Lifetime Gold; Flying Blue Life Platinum; LH Sen.; Hilton Diamond; Kemal Kebabs Prized Customer
Posts: 63,791
Just to give the perspective that it can be done: I change my password monthly anyway, but I changed it again last night on BA.com, logged out of the App, signed in again and all worked fine. Note that the BAEC Avios App, if you use it, also needs to be logged out too. I have a long password, it's not the minimum length.