There were red faces at antivirus company Data Fellows' US office last week as it first fell victim to a virus then accidentally sent it out to customers.
The Finland-based company said an "unfortunate set of circumstances" had led to the firm sending out the email worm virus Freelink.
Tanya Candia, vice president of marketing at Data Fellows, said that the company's antivirus product had actually detected the virus and disabled it.
However, she said that during testing, the antivirus product was switched off for a short while and this was when the virus managed to infect Data Fellows' system and mail itself out to several addresses in the company's contacts list.
"It wasn't switched off for very long at all. This just goes to show the level of activity going on out there," she said. "It wasn't sent to very many people - only a handful. Fortunately the virus is more of a nuisance than malicious."
She added: "There's a lesson everyone here has learned from this - don't let your guard down for a minute."
AMD's Zen chip roll-out continues with the focus on high-power embedded applications
And becomes the team's executive chairman to boot
'Whatever the causes of political polarisation today, it is not social media or the internet,' claims Dr Grant Blank
Tesla founder leaves OpenAI group - while Valve Software's Gabe Newell joins