I currently have a <lastname>.so domain for private email etc. Its working good, just a few people ask to clarify in the last 4 years of usage. However, I do wo

I currently have a <lastname>.so domain for private email etc. Its working good, just a few people ask to clarify in the last 4 years of usage. However, I do worry that I could loose it as its a country TLD? For example, if someone from the country of origin would start a company for example, could they claim it? Does it depend on the country in question?