The following is true about the level of privacy encryption now available online $($check all that apply$)$:

Question $1$ options:

It is based on a simple substitution cipher.

Your computer uses this technology whenever you see a lock or https: in your URL, even without you knowing it$.$

To the best of our knowledge, it is unbreakable at this point in time.

It enables nearly $15\%$ of America's financial and commerce transactions to be secure online.