David Cullinane (Waterford, Sinn Fein) | Oireachtas source

No, it is not. That is the whole point. There are words other than "Siri" that it picks up by accident or whatever. It records instances where somebody clearly does not say "Siri", which is not the person's fault if, for whatever reason, the machine or the device itself picks it up wrong. It is not factually correct to say that it is only listening when a person triggers the Siri system, because it is triggered as we know inadvertently.