Twitter admits it used two-factor phone numbers and emails for serving targeted ads

Twitter has said it may have “inadvertently” used phone numbers and email addresses that users provided to secure their accounts to serve targeted advertisements. In a disclosure Tuesday, the social media giant said it did not know how many users were impacted. The issue stemmed from the company’s tailored audiences program, which allows companies to target advertisements against their own marketing lists, such as phone numbers and email addresses. But Twitter found that when advertisers uploaded their marketing lists, it matched Twitter users to the phone numbers and email addresses users submitted to set up two-factor authentication on their account. The issue was addressed as of September 17, the disclosure said. Twitter finds itself in the same boat as Facebook, which …

YouTube to adjust UK algorithm to cut false and extremist content

Views via recommendations of such borderline videos were halved in similar US trial YouTube is experimenting with an algorithm change to reduce the spread of what it calls borderline content in the UK, after a similar trial in the US resulted in a substantial drop in views. According to the video sharing sites chief executive, Susan Wojcicki, the move is intended to give quality content more of a chance to shine and has the effect of reducing views from recommendations by 50%. YouTube has long taken action against content that violates the sites policies, removing infringing videos and issuing strikes against creators that can ultimately result in them being blocked from uploading new videos. But only recently has the company …