The only way to protect your brand from someone else using it is to register a trademark.
If you are running a successful business and you operate under a name that is different from your name then you have created a brand and for every good piece of work you do for a client you will be creating goodwill in your brand.
In this Podcast I touch on:
1. The difference between Business Names and Trademarks
2. the benefits of registering a trademark
3. How do you register a Trademark in Australia