Scenario: You want to activate 2-factor authentication on your apple id. The system fails and apple support tells you that you have forgotten your security questions. Support suggests you to access https://iforgot.apple.com/ to restore them but when trying to do it the error appears: “Cannot Reset Security Questions We don’t have sufficient information to reset your security questions”
Usually security questions are requested by the apple device in pairs. There are 5 possible questions and perhaps you are sure of the answer of at least one. Go to https://appleid.apple.com/ and when asked about security questions, choose that you have forgotten them. Now there will be the option to choose a single security question; choose the one you are sure of, answer and update the new security questions.
This procedure was reported to us by the apple support: do not do it if you are not in the same situation