An international virus detection company has urged people to monitor their e-mail to avoid succumbing to romantic Valentine's Day messages from malicious or unwitting senders that contain an 'ILoveYou' or some other bug. MessageLabs, which filters e-mail content at the Internet level, said it sponsored a study with research house International Data Corp (IDC) that found people were prone to unsafe computing despite last year's furore over the Love Bug. The study reported that 37 per cent of British e-mail users would still open an 'ILoveYou' note from an acquaintance instead of deleting it. The Love Bug, first detected in May, caused billions of dollars of damage worldwide. Viruses are the most common method of causing computer problems. MessageLabs vice-president for Asia-Pacific, Nick Hawkins, said: 'Valentine's Day would be the perfect time for 'ILoveYou' or a variant to re-appear on the Internet and land in your e-mail box. 'Both the volume and variety of viruses caught by our scanners has increased tremendously in the past few months - and the trend seems to be continuing. MessageLabs believes the risk to Asian businesses and computer users is greater than last year.' The company detected 23,290 viruses in May last year, the Love Bug's first month, but last month the frequency soared to a record 44,625.