Twitter Claims It Unintentionally Used Your Phone Number for Targeting Ads

Posted on October 9, 2019 by Mehedi Hassan in Social with 6 Comments

Large tech companies have been known to misuse user data, and Twitter is not an exception. The company announced on Tuesday night that it accidentally used users’ phone numbers for ad targeting.

Twitter apparently used your phone number and email address for advertising purposes in its Tailored Audiences and Partner Audiences advertising systems.

The “error” allowed third-party advertisers to target ads based on details from their own marketing lists — which could have included your email address or phone number. Twitter was matching your phone number or email address with the marketing lists from advertisers, and even in some cases, data from third-party partners. “This was an error and we apologize,” the company said.

Twitter wouldn’t say how many users were affected by the problem, though it said the issue was fixed on September 17. Twitter also claimed that none of your personal data was ever shared with third-party partners, and it’s no longer using your phone numbers or email addresses for advertising purposes.

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Comments (6)

6 responses to “Twitter Claims It Unintentionally Used Your Phone Number for Targeting Ads”

  1. bennett_cg

    An error of judgement, certainly, but not an error of process. You had better believe that this was deliberate, intentional action on their part.

  2. jimchamplin

    Yeah. You don’t do that unintentionally.

  3. minke

    Surprise, surprise!

  4. red.radar

    With all the data breaches and misuse of personal information, I have to question if the utility of social media outweighs its personal costs.

  5. waethorn


    And "You have control over who sees what you share on Facebook".

    Seriously. Facebook actually says that.

    Don't believe me? It's right here:

  6. jim_may

    I'm still laughing ?