Ok this one is too good to not mention. According to arstechnica.com, a 51 year old sysadmin from New Jersey working for Medco Health Solutions, tried to implant a script that would delete critical company database on his birthday. Apparently he was afraid that he was getting laid off, apparently but others within the company was.
The story goes like this: Lin was employed at Medco because he was “proficient in the HP-Unix computer language designed to operate computer servers,” according to court documents seen by Ars. In the fall of 2003, Lin learned through the grapevine that the company was planning to lay off some sysadmins, and sent off e-mails to colleagues stating that he wasn’t sure if he would survive the anticipated layoffs. A day later, he decided to plant code into Medco’s servers designed to delete almost everything once triggered. “Among other information, the Destructive Code was designed to delete the [Drug Utilization Review Database], as well as databases identifying subscribers, plan coverage, prescription administration, and billing data,” reads one court document. The code was set to deploy automatically on April 23, 2004—Lin’s birthday.
Well, it turns out that Mr. Lin may have gotten a little bit ahead of himself, because several days later, Medco did in fact lay off four sysadmins—none of them him. A month after that, Lin attempted to edit the code, presumably to ensure that it would not deploy as scheduled. It turns out that Lin maybe wasn’t as good a programmer as he thought, because come April 23, 2004, the code deployed anyway. To Medco’s relief, he was apparently really bad, because when deployed, the code failed to do its duty due to a bug. Oops.
Read the rest of the story here