Thanks Yogee. You're right, I'm not native English speaker. Will definitely get somebody to rewrite it in a more natural way (paying in BTC 
Thanks for the feedback RapTarX, webricks. I used password instead of private key so it's more understandable for general population who have no idea about Bitcoin and cryptography.
I'll definitely rethink on whether to rename it, but I'm trying to avoid cryptographic terms like Public/private key. The majority of population don't know about it, but at the same time it differs with other explanations. So, what do you think? Let's see if there is other opinions on this. Otherwise I'll test it with users.
Thanks for the feedback RapTarX, webricks. I used password instead of private key so it's more understandable for general population who have no idea about Bitcoin and cryptography.
I'll definitely rethink on whether to rename it, but I'm trying to avoid cryptographic terms like Public/private key. The majority of population don't know about it, but at the same time it differs with other explanations. So, what do you think? Let's see if there is other opinions on this. Otherwise I'll test it with users.
It's bad idea since IMO everyone must know how important is private key. Rather than avoid cryptographic terms (or other terms that sounds difficult), you can try make separate article/section to explain public-key cryptography with simple example.
There are various example of simple explanation about public-key cryptography such as :
https://blog.vrypan.net/2013/08/28/public-key-cryptography-for-non-geeks/
https://hackernoon.com/public-key-cryptography-simply-explained-e932e3093046
You can either use it as reference or simply copy it, make sure you got permission from the author or read the terms and condition to see if it's allowed.