October 21, 2026

The internet is having a very bad cybersecurity day: From AI-discovered PHP vulnerabilities to flaws in Node.js and popular AI tool LiteLLM, cybersecurity teams have plenty to worry about this week. Read More

Tesla starts Optimus robot production in California as profit falls 43%: Tesla's revenue was flat and its expenses skyrocketed as it pressed the accelerator on its Optimus robots, AI, and autonomous driving. Read More

While Amazon blocks AI agents, Walmart rolls out the welcome mat: As Amazon blocks AI agents from shopping on its site, Walmart is taking the opposite approach, introducing new technology that lets AI agents make purchases on customers' behalf, with controls over spending and transaction approvals. Read More

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Foursquare co-founder says equity holders saw no returns from the company's acquisition: Foursquare raised $411 million in funding according to PitchBook data, but its equity holders saw no returns from its final acquisition. Read More

PHP armageddon: OpenAI, Google's Wiz find ancient holes, panicking the internet: This is the kind of security issue that was found and prevented by AI, but is also a high risk because of AI. Read More

Heat pump tech is 170 years old — Pascal thinks it’s time for an update: Refrigerants startup Pascal has a new take on heat pump and cooling tech using a sponge-like material that promises to be 20% more efficient. Read More

Year-old AI lab Flapping Airplanes raises $1B at a $6B valuation: Just 9 months after raising an $180 million seed round, Flapping Airplanes has landed $1 billion Series A for its mission to build AI models "without ingesting half the internet." Read More

Automattic begins layoffs following board upheaval and executive departures: Automattic has begun laying off employees across multiple teams, including WordPress.com and its enterprise business, following a board shakeup and a series of executive departures. Sources say more cuts could follow as the company looks to improve its finances. Read More

Meta says Muse has over 10M users, with shopping a top activity: Meta Muse users are adopting the app for shopping and personal productivity, the company said during Q3 earnings. The AI app now has over 10M users. Read More

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