"If you have an email address and want to be in a relationship, you can fall victim to this scam," she said.
But not everyone who hopes to find a mate online is falling blissfully in love.
There have been a rash of complaints against online dating sites, according to the Better Business Bureau.
Online dating services are booming businesses, and the boomers who are joining them are doing so in big numbers.
People aged 50 and older represent 25 percent of membership on the popular dating site -- a 45 percent jump in the last five years, a spokesman said.
These sites, along with dozens of other smaller ones, allow you to post a profile of yourself and view the profiles of others.
There is no attempt to verify the information someone posts -- something the sites are generally upfront about.
The site posts photos of the scam artists, who are both male and female.
Sluppick said she believes the toll is higher than the millions of dollars her members have lost, calling online dating scams "one of the most under-reported crimes out there." The embarrassment of being duped and the unwillingness to admit vulnerability is what stops people from reporting the crime, Sluppick said.
Despite Match.com's efforts to educate its members about possible scammers, Traub said that "criminals thrive in every environment. There used to be mail scams." Jeffrey Norton, the lead attorney in the suit filed against and a lawyer at the New York-based firm Newman Ferrara LLP, said he doesn't think the sites go far enough to protect its subscribers, citing the growing volume of complaints.
One popular scam, Norton said, is that a man will pose as someone from a woman's hometown who is temporarily working on a government contract in Nigeria.
The woman obliges and loans him the money, only to learn later that she fell for an online scam.