Live AWS keys in 75 throwaway repos, each made public for one of five windows from 60 seconds to 12 hours, every use logged. The keys were tripwires; the real question was who notices a private repo going public, and what they do once they’re in.
The most useful finding is the dull one: re-hiding the repo does nothing. One busy harvester kept re-validating the captured keys for a day after the repos went private again. Only rotating the key stops it.
This came out of building a monitor for exactly these repo-setting changes.



I guess the rather consistent 6 minutes don’t come from it actually taking so long but rather from some kind of caching that only makes these repos show up after 5 minutes plus 1 minute for fetching and using the api key.
The 6 minutes was the earliest contact, not the typical one. Most first hits came around 8 minutes. I agree there has to be something delaying repos showing up. I was expecting even 60 seconds of exposure to be enough to get caught.