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 …

Cloudflare has a new plan to fight bots and climate change

Cloudflare is ratcheting up its fight against bots with a new “fight mode,” which it says will frustrate and disincentivize bot operators from their malicious activity. Bots are notorious for scraping websites and abusing developer access to download gobs of user data. All too often bots try to game the system by scraping concert or airline ticket prices to buy in bulk at their lowest price and sell them off for higher. Worse, some imitate real users and brute-force their way into websites with lists of stolen passwords. Cloudflare gets three billion bot requests each day. Now the company said it has “decided to fight back.” Its new “bot fight mode,” which Cloudflare today enabled as a free opt-in feature …