Twitter reveals 2FA security data has 'inadvertently been used for advertising purposes'

Twitter has announced that email addresses and phone numbers provided by users for use with two-factor authentication (2FA) have been "inadvertently" used to deliver tailored ads. The company says it does not know how many people are affected by the incident, but apologizes for letting private data be used in this way. The timing of the announcement is a little strange. Twitter says that the matter was under control as of September 17, and it is not quite clear why it took three weeks to go public about it -- even though it says "in an effort to be transparent,… [Continue Reading]