Reply to post: Re: One of the simplest checks of all

Software bug costs Citigroup $7m after legit transactions mistaken for test data for 15 years

Christoph Silver badge

Re: One of the simplest checks of all

No, you come at the grand total by a different route, checking at a different point.

For example, every time a transaction actually happens the stored procedure which implements it (and does all the security checks, and cannot be amended except with a *lot* of safeguards) also adds the amount to the grand total. There's various other possible ways.

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