A hacker is selling data of nearly 142.5 million guests of MGM Resorts -- far more than the 10.6 million reported when the 2019 breach came to light early this year. A post on the dark web says the hacker wants $2,900 for the list, which includes names, addresses and birthdates but not financial information.

Amazon has introduced a smart shopping cart that will track purchases as shoppers add them, then calculate the total for digital checkout so customers can avoid lines. The Dash Cart, equipped with cameras and sensors and designed for small to mid-size loads, builds on the company's "Just Walk Out" technology and will debut later this year at Amazon's new store in Los Angeles' Woodland Hills neighborhood.

A hacker is selling access to Moscow's surveillance system -- which includes more than 100,000 cameras -- on the dark web, including live feeds and five days' worth of recorded footage. The surveillance system, which includes facial recognition technology, has been a point of friction with privacy advocates, who have tried and failed to rein it in.

Mozilla's Firefox Send file-sharing program has been suspended because cybercriminals have been using its encryption feature to deploy malware. Mozilla is working on an upgrade that will include an "abuse reporting mechanism."

Streaming guide apps JustWatch and Reelgood are among those aiming to simplify TV watching by aggregating content suggestions from streaming services into one platform so users don't have to bounce among multiple apps. In addition to information on what content is streaming, they provide suggestions based on viewer feedback, watch lists and viewing habits.

SoftBank Group is reportedly pondering whether to pursue an initial public offering or an outright sale of Arm Holdings, which it bought for $32 billion in 2016, people familiar with the matter say. Goldman Sachs is advising SoftBank on what action it should take.

Stanford University researchers report that seawater could provide an alternative to getting lithium from land mining for use in making lithium-ion batteries for electric vehicles and other applications. "This represents substantial progress," says Jang Wook Choi of Seoul National University, who did not participate in the research.

To help executives stay informed about the ever-changing cybersecurity landscape, SmartBrief has compiled a list of nine of the top information security websites. The sites offer daily news reports, analyses, blogs, podcasts, webinars and other resources.

One of the first lawsuits under California's new privacy law is close to resolution with an agreement "in principle" between retailer Hanna Andersson and tech company Salesforce. Though the breach occurred before the law went into effect Jan. 1, the plaintiffs argued that the hackers published personal data after that date.

Three pieces of legislation introduced Monday in the House of Representatives by Rep. John Katko, R-N.Y., aim to raise the level of the nation's cyberdefenses. The bills would give the director of the Cybersecurity and Infrastructure Security Agency a five-year term, set up a CISA talent exchange program with the private sector and mandate a comprehensive review and upgrade of CISA operations.