Information disclosure via policy update notifications after removal from program

How it was found

Summary:

information disclosure after removed from any program

Description (Include Impact):

after subscribing to changes for any program ( Notify me of changes ) then when the program removed you ,

you could still recieve the changes notification

Steps To Reproduce

1. i have subscribed for Mindoktor ( Notify me of changes )
2. yesterday Mindoktor went from public to private
3. even though i was not there in program ,

i have received the notification of their policy changes

Hope you would fix this

Thanks