A US-based case involving an Alabama accountant who was found innocent of nine counts of tax evasion and filing fraudulent personal and business state income tax returns with the Alabama state revenue department.[1] The prosecution claimed he knowingly underreported more than $630,000 in income over a three-year period and was facing a fine of $900,000 and up to 33 years in prison.[2] Pitts apparently had previously been accused in preceding years of under reporting taxes.[3] Pitts argued that a computer virus was responsible for modifying his electronic files resulting in the under-reporting the income of his firm,[32] and that the virus was unbeknown to him until investigators alerted him.[51] State prosecutors noted that the alleged virus did not affect the tax returns of customers, which were prepared on the same machine.[28] The jury acquitted Pitts of all charges.[5]