While trying to do a build within EAS I'm getting this error:
Authentication with Apple Developer Portal failed!
Apple Service Error -20209. This Apple Account has been locked for security reasons. Visit iForgot to reset your account (https://iforgot.apple.com)
Now I can log into the developer portal absolutely fine, so I don't think I need to reset my password.
Why and how has my account been blocked and where I go from here to get it useable again for building.