However, ISS is reporting that over the past year the number of dating Web sites has increased by almost 20 percent and the company suspects that many of these have been set up specifically to exploit unpatched vulnerabilities in users' PCs.More details over at ZD Net.
According to Gunter Ollman, director of X-Force at ISS, organised cybercriminals are using mass spam campaigns to direct people to these malicious Web sites: "Organised criminal units have in the past timed their attacks to coincide with popular celebration occasions in order to achieve maximum success in compromising the integrity of computer systems."
Dating websites spreading viruses and other malware

Security experts from ISS warn that every year around Valentines day, Internet users must avoid opening unexpected messages of love because they could contain a virus or other malicious code.