EP-437 Atlas Ai’s Defense Revamp 🛡️, Alphabet’s $4.75b Power Play ⚡, Apollo Go’s London Move 🚖

```html welcome to wall-e's tech briefing for tuesday, december 23rd! explore today's key topics: prompt injection challenge: openai combats ongoing prompt injection attacks against its atlas ai browser with a new strategy involving reinforcement-learning trained bots to enhance security. alphabet's power play: google's parent company, alphabet, announces a $4.75 billion acquisition of intersect power to boost its power-generation capabilities, reducing reliance on local utility grids. robotaxis in london: uber and lyft team up with baidu to roll out apollo go robotaxis in london by 2026, partnering with local startup wayve and waymo. chatgpt's year in review: introducing "your year with chatgpt," a personalized annual review feature akin to spotify wrapped, available in select english-speaking areas. entertainment acquisition bid: paramount skydance increases its $40.4 billion bid to acquire warner brothers, backed by oracle's larry ellison, aiming to compete with netflix. join us again tomorrow for more tech updates! ```