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Twitter accidentally shared users’ data with advertising partners

Twitter officials said the company recently discovered and fixed a problem in its advertising platform.

Due to a bug, from May 2018 to August 2019, some data about users (without the consent of the latter) was provided to advertisers, including the country code of residence, the type of device they use and the details of the advertisement.

The problem affected only those users who clicked or viewed the advertisement from mobile application and then interacted with this application.

“The data involved stayed within Twitter and did not contain things like passwords, email accounts, etc.”, — also reported in Twitter.

Twitter has already published a list of advertising partners who could see such data, but did not give the names of mobile applications that were advertised on the platform. Currently, the company continues to investigate what happened and promises to publish additional information soon.

Read also: Information on a million of South Korean bank cards put up for sale on darknet

Moreover, developers found that since September 2018, Twitter has practically ignored the choice of users and in any case showed them targeted ads, even if the user explicitly refused this in the settings. This bug has also been fixed.

Representatives of Twitter also said that they are investigating how this could affect users and state that their users can’t take any actions, at least until the end of the investigation, but to continue to trust the company.

“You trust us to follow your choices and we failed here. We’re sorry this happened, and are taking steps to make sure we don’t make a mistake like this again”, — report in Twitter.

Recalling that this is not the first time when Twitter accidentally shares users’ data with third parties.

For example, in December last year, it turned out that developers of some applications could read the personal messages of users. Next, in May this year, it was reported that due to an error, a certain “trusted partner” of the company could see the geolocation data of iOS users.
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About Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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