TournReg bowlers and tournament officials are not affected. Tournreg.net does not use OpenSSL, the popular data encryption standard, which was vulnerable to the Heartbleed bug you may have read or heard about recently.
To confirm that you are safe from this bug, visit a 3rd party checker such as at https://lastpass.com/heartbleed/. Enter www.tournreg.net for the website. Notice we use a Windows-based host server without OpenSSL. We use a valid, verifiable SSL certificate to protect transactions/entries submitted at the TournReg site. Feel free to use this checker tool for other sites if you want.