1985 - Therac-25 Radiation Therapy Machine
delivered a high-powered electron beam with 100
times the intended dose of radiation, delivering a
lethal dose of beta radiation
one-byte counter in a testing routine
1991 – Gulf War Patriot Missile System software
had a delay and was not tracking the missile
launch in real time, thus giving Iraq’s missile the
opportunity to break through and explode before
anything could be done to stop.
In all, 28 were killed with an additional 100+
1994 - Scotland, Chinook helicopter crashed and
killed all 29 passengers.
Initially the pilot was blamed for the crash
However evidence rised that a software error was
the actual cause
2000 - Radiation Therapy planning software
delivered different doses depending on the order
in which data was entered.
This resulted in massive overdoses
5 deaths where known potentially 21 died
2003 - Race Condition Bug causes blackout
across eight US states and Canada
affected 50 million people
2003 - Computer software blunder at St. Mary’s
Mercy Medical Center in Grand Rapids, Michigan,
that cost the lives of 8500 patients.