Twitter said on Friday it will allow only paid subscribers to use text messages as a two-factor authentication (2FA) method to secure their accounts. After March 20, “only Twitter Blue subscribers will be able to use text messages as their two-factor authentication method,” the company said in a tweet. Two-factor authentication, meant to make accounts…

Elon Musk said that if Twitter Inc. could provide its method of sampling 100 accounts and how it confirmed that the accounts are real, his $44 billion deal to buy the company should proceed on its original terms. “However, if it turns out that their SEC filings are materially false, then it should not,” Musk…

FRANKFURT—The European Central Bank must keep its policy options open beyond a crucial meeting in December as uncertainty over the likely evolution of inflation is exceptionally high, policymakers concluded in October, according to the accounts of the meeting. High inflation is still largely seen as temporary but the current “hump” in prices will be more…

NEW YORK—Details from more than 500 million Facebook users have been found available on a website for hackers. The information appears to be several years old, but it is another example of the vast amount of information collected by Facebook and other social media sites, and the limits to how secure that information is. The…

NEW YORK—Details from more than 500 million Facebook users have been found available on a website for hackers. While the information appears to be several years old, it’s another example of the vast amount of information collected by Facebook and other social media sites, and the limits to how secure that information is. The availability…