Online shoppers made Cyber Monday the biggest shopping day in U.S. history, with forecasted sales of $6.6 billion — a 16.5 percent increase over last year. Amazon is estimated to have a 42 percent share of those sales. [Elizabeth Weise, USA Today]
The city of Chicago filed a lawsuit against Uber for failing to disclose a 2016 data breach that affected 57 million drivers and riders. The city also alleges that Uber failed to correct security vulnerabilities that led to a previous data breach in 2014. And Uber is going to have to explain to the U.S. Congress why it took so long to reveal the hack. Democratic Sen. Mark Warner wants to know if Uber tried to “hack back” the hackers, which is illegal under federal law. [Johana Bhuiyan / Recode]
Here are four key questions about SoftBank’s multi-billion dollar tender offer for Uber, which is expected to begin today, giving Uber shareholders the chance to sell some of their stock or hold fast until the company goes public. The deal is in line with what Uber investors were expecting: SoftBank is preparing to buy shares at a price that values Uber at only $48 billion; the company was previously valued at almost $70 billion. [Theodore Schleifer / Recode]
Tumblr CEO David Karp resigned from the blogging site he founded 11 years ago, and which is now part of the Verizon-owned media conglomerate Oath. “I beg you to understand that my decision comes after months of reflection on my personal ambitions, and at no cost to my hopefulness for Tumblr’s future or the impact I know it can have,” Karp wrote to his team. Tumblr president and COO Jeff D’Onofrio will take over while the company seeks a permanent replacement. [Kurt Wagner / Recode]
Facebook is using artificial intelligence to address one of its darkest challenges: Stopping suicide broadcasts. Facebook experienced a cluster of livestreamed suicides in April, including one in which a father killed his baby daughter before taking his own life. After initial tests in the U.S., the company is globally rolling out a pattern-recognition tool that lets machines sift through posts or videos and flag when someone may be ready to kill themselves. [Hayley Tsukayama / The Washington Post]
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This article originally appeared on Recode.net.