Question: Can concept Original characters be Stolen?

[Philippine Big Boar]

Recently I posted one of my characters. This character is the most important and profoundly dear to me yet it's the only character I NEVER share and scared to share. Not until it's officially finished in profile. and has an official drawing made by myself. 

This may sound an exaggeration or absurd. but that character is even more valuable than my life for me. 

And I want the internet to know it(algorithm,SEO, AI etc not necessarily popular). For example if someone searches “list new funny power original characters “ My character will also appear on list

It started with an experiment related to AI. If I can make an original character appear in chat by typing "(character name) appear" To see if ai can actually get it correctly or only working on a known popular character. Sadly it's not working yet. To do this the character has to be posted on several sites such as "OC sites" and not hidden in public yet hoping it doesn't attract attention at least not yet. 

The thing is... It garnered 900+ after 8 days on a certain site. I cannot just tell people to "do not check my profile" as it would even make them check it even more. I hope 900+ for 8 days is not considered viral. What makes me worry is that someone already "shared" it just now. Just one. Unlike me that someone might be popular unlike me. That someone might claim it on their own. Now I'm worried. I hope it's okay.