Data & math bugs
“The books are off by a cent and nobody can say where it went.”
Currency is carried in fractional units as a binary float rather than in integer minor units. Each individual operation looks right to two decimal places; the error only becomes visible after it accumulates or at sub-unit precision.
Money handled as floating pointorange beltMonetary precision and integer minor-unit arithmetic
Choose your app
The same mistake, planted in different products. Pick the domain you want to hunt it in.
TapTrust Federal
TapTrust Federal Credit Union · Banking · Online + teller
online.taptrustfederal.test
2 planted defectshunt here →
QualityMart
QualityMart Inc. · Retail · Big-box e-commerce
shop.qualitymart.test
1 planted defecthunt here →
QualityChart
St. Quality Health · Healthcare · EHR
Not seeded here yet — an open seat for a contributor to plant this defect in QualityChart.