One or two hiding in the crowd could be enough. I wouldn’t be surprised if there was at least one spy from some adversarial nation. From a security perspective

One or two hiding in the crowd could be enough. I wouldn’t be surprised if there was at least one spy from some adversarial nation. From a security perspective, I think they will need to assume everything is potentially compromised and go from there. Remote wipe, scan for microphones and cameras, etc.