Rekeying in Finance: Its Importance and Impact: Rekeying in finance. The world of banking relies heavily on accuracy and security. Every piece of financial information, from transactions or account balances of small amounts to big investment portfolios, requires precision in processing. However, one of the least-known but vitally important steps in ensuring that accuracy is not compromised is "rekeying." The phrase has security overtones in other sectors, but in banking and finance, rekeying refers to the re-entry or updating of information into systems to assure accuracy. What appears to be a normal activity can have huge ramifications for data integrity,...