Millions of people hoping for an e-card from their sweetie or loved one on Valentine’s Day are ending up with nothing but a Valentine virus instead.

SophosLabs and Secure Computing are warning users about a widespread worm posing as a Valentine’s Day greeting that is spreading quickly.

“It’s fairly nasty,” says Dmitri Alperovitch, a principal research scientist with Secure Computing. “We’ve been expecting it because around holiday time, criminals try to take advantage of people who might be hoping to get greeting cards or announcements that flowers are coming.”