Third party is demanding timestamp proof from company I work at

Hi, So this is gossip from the water-cooler that peaked my interest enough to ask about it here.

A third party, which is claiming to be a client of one of our paying clients wants proof, via a screenshot of some data entries, that we are abiding by some standardized date formatting policy. While I think that request is quite odd, I think it's particularly odd that they won't divulge who they are or who their client (our paying client) …

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