Dating site hacker
When users enter their login information, it goes into the hands of malefactors.
The phishers can then log into users' dating profiles, change the password and lock legitimate users out.
After acquiring email addresses from members of dating sites, the script sends a message telling members that they need to log into their accounts for any number of fraudulent reasons (usually "account confirmation" or something that sounds equally innocuous).
The email displays a URL to, say, e Harmony, while actually linking to a disreputable site that copies the e Harmony aesthetic and login system.
Compromising legitimate profiles is a much smarter, albeit more insidious, way to go.
If you have an account on a dating site, be aware of suspicious emails that come your way, and never click on a link if you're unsure of the sender; enter the URL manually instead.
Also be wary if someone on a dating site asks for money before you've met.
This is less efficient than hacking bank accounts, but much harder to trace and potentially much easier to pull off.
Since real people are behind these schemes, they're not as easy to spot as scam profiles.