MBB (Minimum Ballot Based) audit

A Minimum Ballot Based (MBB) audit is a process used to verify the accuracy of election results. It involves randomly selecting a small, representative sample of ballots—just enough to confirm the overall outcome. By manually checking this sample against the reported results, auditors can detect any discrepancies or errors. If the sample matches the reported outcome, confidence in the election results increases; if not, a more thorough audit may be triggered. MBB audits balance efficiency with reliability, providing a cost-effective way to ensure election integrity without examining every ballot.