3. Further complications: hoaxing and spying
As if it weren't worrying enough there are also many circulating virus hoaxes. And along with viruses and their hoaxes come the bedfellows of adware and spyware. Unlike viruses, adware and spyware don't generally try to cause damage to your machine but their intent ranges from simply being annoying to more serious snooping of private information such as passwords and personal data. For these reasons it is prudent to treat adware and spyware in the same way as viruses and to run software that checks for and removes adware and spyware. Almost inevitably there are some rogue adware-removal programs that actually install their own adware!