Troubling issue with admin account

I’ve been using this plugin without issues for a couple of years now, but twice in the last six months I’ve run into a rather troubling issue with the administrator account.

Both times, my admin account in WordPress has suddenly become associated with a recently registered account in phpBB. The profile remains the same for the most part, but the email changes to the new user and associates with their phpBB3 user ID, presumably giving them full access to the WP admin. I can still log in with my phpBB account but get the standard user CP in WordPress.

It’s easy enough to fix up by changing the necessary values in phpMyAdmin, but there’s obviously a security risk if I don’t happen to be around to notice it right away. Needless to say, I’d like to prevent it from happening again, so I’m wondering:

1. Has this ever happened to anyone else?
2. Any ideas what may have caused it?
3. Any ideas on how to fix it?

Appreciate any insight. 🙂

http://wordpress.org/plugins/wp-phpbb-bridge/