Although Facebook has received the brunt of the blast involved with allowing Cambridge Analytica access to their users’ personal data, The Telegraph reports Twitter also directly sold data to the company.
Twitter says it has now banned ads from the company.
A Twitter spokesman confirmed the ban and said: “Twitter has also made the policy decision to off-board advertising from all accounts owned and operated by Cambridge Analytica. This decision is based on our determination that Cambridge Analytica operates using a business model that inherently conflicts with acceptable Twitter Ads business practices.
There is a bit of a difference in what data Facebook and Twitter allowed Cambridge Analytica to access. The Facebook data was information that Facebook users thought only their Facebook friends had access to. The data Twitter sold is all publicly available. The difference being that CA would have had to read individual tweets if Twitter hadn’t sold them a large collection of the information.
The Telegraph says that data sales such as that sold to CA made up 13% of Twitter’s total revenue in 2017.