Despite the anti-virus protection program installed on its computers, SmartTech has received many complaints from consumers that their computers had become infected with viruses  In order to reduce the number of its computers vulnerable to viruses, the CEO of SmartTech Corp  has had the company' s engineers install three different virus-blocking programs on each computer before shipping them to consumers
Nevertheless, customer reports of computer viruses have risen since the institution of this initiative
When more than one anti-virus program is installed on a machine, the programs can become less effective.