I Guess Nothing Is Foolproof

From a 2023 report at The Verge:

Sony highly confidential information about its PlayStation business has just been revealed by mistake. As part of the FTC v. Microsoft hearing, Sony supplied a document from PlayStation chief Jim Ryan that includes redacted details on the margins Sony shares with publishers, its Call of Duty revenues, and even the cost of developing some of its games.

It looks like someone redacted the documents with a black Sharpie — but when you scan them in, it’s easy to see some of the redactions. Oops.

This is sort of the exception that proves the rule regarding redactions. If you redact a document digitally, you have to know what to look for (e.g. metadata) to be certain you’ve redacted everything you want to redact. If you redact a document on paper, you can just look at it, with good light and sharp eyes.

★ Tuesday, 23 December 2025