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Case Study #257 — 300 Software Failure Case Studies

Michigan MiDAS unemployment fraud-detection algorithm failure

Michigan's automated unemployment-fraud detection system falsely accused more than 34,000 people of fraud over two years, an 85% error rate, triggering wage garnishments, bankruptcies, and lawsuits.

2013-2015
When it happened
Government
Sector
#257 of 300
Ranked by documented impact
01 — What Happened

The damage was public. The root cause was preventable.

Michigan's automated unemployment-fraud detection system falsely accused more than 34,000 people of fraud over two years, an 85% error rate, triggering wage garnishments, bankruptcies, and lawsuits.

Government
Sector affected
2013-2015
Date of the event
#257
Rank in the 300 Software Failure Case Studies
1
Distinct root-cause clause identified below
02 — The Root Cause

What the software actually got wrong

The state removed human caseworkers from the fraud-adjudication process and let the MiDAS software issue fraud determinations automatically based on incomplete or ambiguous claimant data, with no meaningful human review before harsh penalties were imposed.

01Root Cause

The state removed human caseworkers from the fraud-adjudication process...

What Happened

The state removed human caseworkers from the fraud-adjudication process and let the MiDAS software issue fraud determinations automatically based on incomplete or ambiguous claimant data, with no meaningful human review before harsh penalties were imposed.

How Requs AI Catches This

Requs AI Edge Case flags this exact pattern at the requirements and architecture stage — before a single line of code implementing it exists — so the assumption behind it gets challenged while it is still cheap to fix.

03 — How This Gets Caught Before It Happens

Beyond code coverage and "shall" testing

Root causes like this one rarely show up in code coverage or requirements-compliance testing, because nobody wrote a requirement anticipating the specific edge case that broke. Requs AI Edge Case and Requs AI Software FMEA are built to surface exactly this class of overlooked failure mode — before the software is written.

Requs AI Edge Case

Surfaces this before code exists

Identifies edge cases like this one at requirements and architecture time, using the Common Defect Enumeration to catalog failure patterns seen across hundreds of real-world software failures — including this one.

Requs AI Software FMEA

Connects the failure mode to the hazard

Traces this class of root cause directly to the system-level hazard it can produce, so a defect pattern like this one gets flagged during design review instead of after it ships.

Find the overlooked root causes before they ship.

Schedule a demonstration, or explore how Requs AI Edge Case and Software FMEA use the Common Defect Enumeration.