Spreadsheet errors are an integrity issue

I think spreadsheet errors are a very serious problem - see http://panko.cba.hawaii.edu/ssr/.

But I also think they are also a "security" issue - Security is Confidentiality, Integrity and Availability, not just Confidentiality. OK, I know that coding errors aren't usually considered security risks (although the fixes often are) but I think that our habit of treating security-related defects as something different to system defects in general tends to reduce security - things fall into the gap between the security assessment and normal testing...