London police facial recognition trial scanned 500,000+ faces and produced one false alert

SignalsMonitor is following this as a security story. Times of India World is the outlet attached so far. The reports are tied to London. The first report grouped here was at 1 Oct 2026, 04:32 UTC. The headline in use is “London police facial recognition trial scanned 500,000+ faces and produced one false alert”. This note is SignalsMonitor's own briefing, not the publisher's article.