Locate email address on dating site
performs a broader sweep of services for usernames only, immediately flagging services where a particular username has been registered.
This is an easy way for someone with malicious intent to draw connections between a dating site profile username and your ‘real’ life, even if your profiles are correctly private or hidden.
If that professional headshot is still in a cache associated with your dating profile, he or she can use Tineye to match it to your corporate bio that shares the same photograph.
He or she will very likely check search engine caches for old pictures or bios that are easier to identify or contain embarrassing details.
The very simplest, a Google search will often turn up social media profiles, forum posts, and blog comments tied to a particular username.