A hypothetical scenario. I have an online directory search & e-comm site based out of India called Otto.Com. The purpose of this website is to list all ottoman makers & servicing people globally. As I start promoting it, I realised that someone has a company by the name Oto in AU & is in the same industry but primarily in e-comm (selling ottomans online). No trademarks are registered by either me or them yet. My website is Otto.Com and theirs is Oto.Com.Au. While I will not have a registered entity in Australia and all my revenues from different countries will roll up to the India entity, is there a possible challenge in both the cross-continent companies having similar business names? Especially when we operate in the online world?