Well, of course "it's always a people problem" as Jerry Weinberg says. But the Barclays example is interesting* precisely for its technical detail. The spreadsh

Well, of course "it's always a people problem" as Jerry Weinberg says. But the Barclays example is interesting* precisely for its technical detail. The spreadsheet author used Excel's "hide" feature to hide some data. Had Excel given them the ability to restrict read access to some portion of the sheet, it seems obvious that they would have done that instead. * Interesting to me at least, because I work on things like this. Not contradicting your comment at all.