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Meta CTO: Ray‑Ban demos DDoS'd themselves
19 Sep 2025- Meta CTO Bosworth attributes Ray‑Ban smart glasses demo failures to dev‑server routing that triggered Live AI across devices (a self‑inflicted DDoS) and a separate sleep‑state call bug, now fixed.
19 Sep 2025
Meta’s CTO Andrew Bosworth has explained why two high-profile live demos of the company’s new Ray‑Ban smart glasses failed at Meta Connect. In an Instagram AMA he said an influencer’s command — “hey Meta, start Live AI” — accidentally triggered Live AI on every paired Ray‑Ban in the building because traffic had been routed to a dev server on the same access points. “We DDoS’d ourselves, basically,” Bosworth said, which contradicts Mark Zuckerberg’s onstage suggestion that the issues were simply Wi‑Fi problems.
The separate WhatsApp call demo failed due to a different issue: a “never‑before‑seen bug” that happened when the Display glasses went to sleep exactly when a call notification arrived. Bosworth says that bug has since been fixed, and acknowledged the demo was “a terrible place for that bug to show up.”
While embarrassing, the transparent post‑mortem is notable: it shows live AI demos can fail in unpredictable ways, and provides a rare public look at how on‑device assistants and cloud routing interact — and how those interactions can cascade into broad outages during high‑profile presentations.
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Meta’s CTO Andrew Bosworth has explained why two high-profile live demos of the company’s new Ray‑Ban smart glasses failed at Meta Connect. In an Instagram AMA he said an influencer’s command — “hey Meta, start Live AI” — accidentally triggered Live AI on every paired Ray‑Ban in the building because traffic had been routed to a dev server on the same access points. “We DDoS’d ourselves, basically,” Bosworth said, which contradicts Mark Zuckerberg’s onstage suggestion that the issues were simply Wi‑Fi problems.
The separate WhatsApp call demo failed due to a different issue: a “never‑before‑seen bug” that happened when the Display glasses went to sleep exactly when a call notification arrived. Bosworth says that bug has since been fixed, and acknowledged the demo was “a terrible place for that bug to show up.”
While embarrassing, the transparent post‑mortem is notable: it shows live AI demos can fail in unpredictable ways, and provides a rare public look at how on‑device assistants and cloud routing interact — and how those interactions can cascade into broad outages during high‑profile presentations.
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