Earlier quoted context omitted.
But Xerox has admitted that the character substitution was enabled on all compression levels even though they claimed it was only active on one specific level. So theoretically, everyone who archived during that time using Xerox WorkCentres has to question their documents.
Which might be exactly, why nobody wants to talk about this. (This may be especially nasty where archives had been digitized and then the analog originals were disposed of. What can you even do about this?) PS: In order to have learned anything from this, there should be a rule for the digitization of archives containing core documents to use (at least) two unrelated scanning technologies, with unrelated processors a…
My original comment was more aimed at the point that damage would need to be admitted. But they did admit it, which makes it evermore confusing why nothing really happened after that, at least publicly.
I don't think that TMR or similar overhead would be practical. Just ban compression algorithms that do pattern matching and substitution for archival purposes (like the German BSI did).