Twitter says it used your 2FA info to advertise by accident

Cartoon image of a sperm whale being held aloft by balloons

Cartoon image of a sperm whale being held aloft by balloons

In that case, the Federal Trade Commission alleged Facebook deceived users because it "did not disclose, or did not adequately disclose" that phone numbers provided through its security tool for the goal of two-factor authentication "also would be used by Facebook to target advertisements to those users".

The company issued a statement saying that the misuse of that information was a "mistake" and was "inadvertent".

Twitter says it mistakenly used the phone numbers and email addresses people provided for security purposes to show advertisements to its users.

Those tools let advertisers aim a specific ad at a customer based on their own marketing lists.

It said that the account security contact information had not been disclosed to third parties, but could not say how many users had been affected.

The Partner Audiences advertising system, on the other hand, makes it possible for advertisers to target users from lists provided by third-party partners.

Tile Sticker and Tile Slim are the company's thinnest trackers to date
The standard Tile Mate and Tile Pro also got a refresh, now offering enhanced range (200 feet for the Mate, 400 feet for the Pro). Tile uses its newly-expanded Bluetooth range and increased volume to help customers find their misplaced possessions.

A Twitter security feature may've wound up costing people their data privacy, the company said in a statement Tuesday.

Twitter users' phone numbers and email addresses - submitted to allow for account authentication - were matched with advertisers' own data to enable targeted ads.

The company said it had decided to "make everyone aware" of the issue given it was unable to narrow down exactly which accounts may have been impacted. Infosec professionals warned that it could lead people to distrust and ultimately abandon 2FA security on accounts.

That information is supposed to be used exclusively for account protection purposes, but Twitter said advertisers were able to tap the phone numbers to target commercials, through the company's "Tailored Audiences" and "Partner Audiences advertising system".

Something similar happened a year ago when, as Gizmodo's Kashmir Hill discovered, Facebook built complex advertising profiles for all its users containing everything from their two-factor authentication phone numbers to info harvested from their friends' profiles.

Recommended News

  • Dog at home means longer life, better heart health

    Dog at home means longer life, better heart health

    Martha Gulati, who is the editor-in-chief of CardioSmart.org, the American College of Cardiology's patient education platform. Part of the benefit is likely due to the physical activity that comes with having a dog , Kramer said.
    Richard Curtis, Gillian Anderson among stars for NHS mental health campaign

    Richard Curtis, Gillian Anderson among stars for NHS mental health campaign

    Some users expressed that the campaign was "important", but that it should be followed by an investment in mental health services. The ECB has lent its support to Public Health England's new mental health campaign Every Mind Matters .
    Pilots sue Boeing for $100m over claims 737 Max was unsafe

    Pilots sue Boeing for $100m over claims 737 Max was unsafe

    Boeing has said there was no breakdown in the design, testing and Federal Aviation Administration approval of the Max. Southwest has said it would take about 45 days after the ban is lifted to have the Max ready to fly.
  • Georginio Wijnaldum calm despite Liverpool's eight-point lead over Manchester City

    Georginio Wijnaldum calm despite Liverpool's eight-point lead over Manchester City

    Meanwhile, David Silva is expected to leave Manchester City at the end of the ongoing Premier League season as he has been playing for the club since 2010.
    Three STDs reach record high in US

    Three STDs reach record high in US

    About 35,000 cases of the most contagious forms of the disease were reported - also the most since 1991. The increases coincided with public health funding cuts and clinic closures.
    The Bachelor's Peter Weber Undergoes Surgery After Suffering Fall

    The Bachelor's Peter Weber Undergoes Surgery After Suffering Fall

    Radar Online was first to report the news and claimed Weber required 22 stitches on his face. E! News has reached out to ABC for comment.
  • Democrats alarmed about possible U.S. withdrawal from Open Skies treaty

    The signatories include most of the North Atlantic Treaty Organisation states, Russia, Belarus, Ukraine, and several others. The White House and Pentagon have not responded to CNN's requests for comment on the matter.
    DICK'S Sporting Goods destroys more than $5 million worth of assault rifles

    DICK'S Sporting Goods destroys more than $5 million worth of assault rifles

    Other companies, such as CVS, Kroger and Walgreens joined Walmart in asking customers to bring guns into their store. Since the massacre in Parkland, corporations have responded to the public's growing demand for gun control measures.
    Ohio State Continues to be the Best of the Big 10

    Ohio State Continues to be the Best of the Big 10

    Ohio State continues to be the best in the Big 10 even with all the changes to the football program over the last calendar year. This season its already playing at that level after six games. "I thought the atmosphere was awesome and electric.
  • Greta Thunberg effigy hanged under Rome bridge

    Greta Thunberg effigy hanged under Rome bridge

    Police in the city have begun an investigation, saying that the inquiry had been opened after "aggravated" threats . The effigy has her face and even her braids.
    City Girls' JT Is Finally Free

    City Girls' JT Is Finally Free

    Her group mate Yung Miami was more than ecstatic to share the news. "You b*tches could neva", she stated in the caption. Since then Yung Miami has been holding it down on the records and videos.
    PSU Coach Responds to ‘Racist’ Letter Sent to Player

    PSU Coach Responds to ‘Racist’ Letter Sent to Player

    Social media users found an email associated with Petersen for alumni at the university, but his alumni page has been taken down. We live, we learn, we grow, we support, and we defend each other. "The football that I know and love brings people together".

We are pleased to provide this opportunity to share information, experiences and observations about what's in the news.
Some of the comments may be reprinted elsewhere in the site or in the newspaper.
Thank you for taking the time to offer your thoughts.