Scary Story, But Happy End
From Worker put 'bomb' in drug giant's databases:
"A technology administrator angry about possibly losing his job planted an electronic "bomb" in the computer system of one of the nation's largest prescription drug management companies that would have wiped out critical patient information had it gone off"
"The potential damage to Medco and the patients and physicians served by the company cannot be understated," Christie said. "A malicious program like this can bring a company's operations to a grinding halt and cause millions of dollars in damage from lost data, system downtime, recovery and repair."
I believe they've done Threat Modeling that helped them estimate "potential damage" - love it!
To make sure that the app runs in clear environments and in order to counter such attacks one should constantly conduct deployment inspections that include network, host, and app security inspection