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Edtech startup Physics Wallah closed up 44% in its Indian IPO, giving it a ~$5B market cap; it was last valued at $2.8B in 2024 when it raised a $210M Series B (Jagmeet Singh/TechCrunch)

Jagmeet Singh / TechCrunch : Edtech startup Physics Wallah closed up 44% in its Indian IPO, giving it a ~$5B market cap; it was last valu...

18 November 2025

Researchers demonstrated a major WhatsApp flaw that exposed 3.5B users' phone numbers, with 57% also showing a profile photo; Meta fixed the enumeration problem (Andy Greenberg/Wired)

Andy Greenberg / Wired:
Researchers demonstrated a major WhatsApp flaw that exposed 3.5B users' phone numbers, with 57% also showing a profile photo; Meta fixed the enumeration problem  —  By plugging tens of billions of phone numbers into WhatsApp's contact discovery tool, researchers found “the most extensive exposure …

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