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Re:Twitter kills off SMS notifications and posting in most c... by eigen-vector on Monday April 27, 2020 @03:09PM (#22998886)
If the phone numbers were of your users you were presumably unauthorized to sign up for a different service using those. That is sketchy.
Re:Twitter kills off SMS notifications and posting in most c... by seancoleman on Monday April 27, 2020 @03:14PM (#22998950)
This was an internal app so all users were known and gave authorization, but I hear your concern.