The secure hash algorithm or SHA-256 puts Bitcoin in a different lane, where you can share your bitcoin address without risking the security of your funds. But there is so much more. A one-way hash ...

This is how many times it's hashed, so for every round an attacker would need to computer another hash. I set mine at 65,536 for ridiculous security. After that is done, hit ctrl+x and y to save it.