Computer Associates International (CA) last month warned against viruses that act like year 2000 problems or activate during the new year rollover.
Reyland Villacastin, CA's regional OS/390 manager, said that a few viruses have already been detected that behave like the year 2000 bug and churn out erroneous dates.
Such viruses pose a lot of risks for companies who are undergoing Y2K remediation efforts, he said. Companies may be fooled into thinking that date errors on their computer systems may be caused by year 2000 glitches, but in truth the errors might be caused by viruses.
Because the viruses are not detected, companies will incur a lot of expense trying to fix their computer programs' source code instead of removing the virus, he said. Some viruses also may be activated during the new-year rollover itself.
If undetected, such viruses could also create confusion among users who will think system failures have been caused by Y2K glitches.
Villacastin urged users to continuously update their antivirus software and ensure security policies are enforced.