That is understood. The life cycle of canary is n days, in this case apparently 7 days. Industrial output, economic stats, health of world figures, and Vatican

That is understood. The life cycle of canary is n days, in this case apparently 7 days. Industrial output, economic stats, health of world figures, and Vatican whispers are precisely what a state intelligence agency is supposed to know before the general public. The idea is that the message embeds bits of information that were disclosed at a specific point in time and my point is that these types of bits are not that that unpredictable for the sort of adversary that necessitates canaries.