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free account today. Welcome to Tech News Briefing. It's Friday, August 11th. I'm Zoe Thomas

for the Wall Street Journal. This week, as many as 150 people at a time will be invited by

OpenAI, Google and Thropic and others to attack their artificial intelligence systems.

Part of a massive hackathon. Some of these folks aren't even traditional hackers,

but new generative AI tools are changing the game for cyber strikes. Our reporter Robert McMillan

is in Las Vegas where this is taking place and will join us to explain the new threats

and how companies are trying to prepare. Plus, got bad news to deliver? Maybe a celebrity can do it for

you. We'll tell you about the app people are turning to for that.

But first, Amazon is cutting dozens of its in-house brands as it battles costs and regulators.

Over the past year, Amazon has decided to eliminate 27 of its 30 clothing brands according to

people familiar with the matter. It's also dropping private label furniture brands. Some of them said

the company is currently in the process of selling off the remaining inventory from these labels.

Amazon Basics, which sells a range of home goods and tech accessories, will remain a focus of the

company. Our reporter Dana Matioli says there are a few reasons. Amazon is doing this now.

This is just 1% of their retail sales, but it's a huge headache for the company from a regulatory

standpoint. For years, sellers have complained about the private brands goods on Amazon and regulators

have looked into whether Amazon was using the data from all of its sellers on Amazon.com to copy

their products for its house brands. And that has brought upon Amazon lots of questions from

Congress, from the FTC, from foreign regulators. The second part of this is they had so many

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