The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
TSNN's wrap-up: Black Hat USA 2026 welcomed more than 23,000 attendees "to the Mandalay Bay Convention Center in Las Vegas Aug. 1-6."
Black Hat's own closing release: more than 23,000 verified attendees at Mandalay Bay, over 15% growth; keynotes from the National Cyber Director, CISA's acting director and the FBI; Opnova won the Startup Spotlight.[1]
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