"I had a similar call the other day"

Justice Webologist receives one of those phone calls:

"Had another call today from a firm telling me that my computer was generating errors caused by malware, which was caused because my security warranty was out of date. I had a similar call the other day, and knowing it to be a scam I asked them which computer was causing a problem, and said that there were over 300 computers in my office and they could not all be faulty. The man that called hung up."

Well worth reading even if you think you're someone who is especially web-literate, if only so that you can help others watch out for the signs.