The social media platform announced the findings in a blog post on Tuesday. Data potentially shared includes users’ country codes, ad information, whether they engaged with the ad and, if so, when; it may have been given to third-party advertisers. The company said it fixed the issue Monday. (CNET)

Talking point: Twitter has been aiming to be more transparent about its data-collecting practices following a global techlash aimed mainly at its larger counterparts, Facebook and Google. In April 2018, it published an updated privacy policy shortly before the EU’s General Data Protection Regulation came into effect, which gives citizens more control and knowledge over how their data is collected and used. But Twitter has also faced a host of issues since then—in May, it said a bug shared users’ location data with advertisers. Part of the increase in bugs could be because the company is reporting them more, as the GDPR mandates firms to do so. The U.K.’s data protection regulator has raised concerns with targeted ads in general, such as the way data is collected and how many advertisers are given access to it without a user’s explicit consent or knowledge. Though it hasn’t signalled any formal legal action yet, the report suggests the practice could violate the GDPR.