The NYU Ad Observatory project studies political ads on Facebook. Its access to the platform has now been shut down because it breached user privacy by scraping data, despite repeated warnings.
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Twitter has issued an apology to users after security information, including phone numbers and email addresses, was inadvertently used for targeted ads. This data was not available to third parties.
The Italian government charged Facebook with a hefty penalty of €1m today for breach of user data by political analytics company Cambridge Analytica. The million euro fine is non-negotiable.