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Considering that the Data Encryption market is a pretty tough one to crack down. I would suggest the following:
Change the word Unhackable to something more simple that anyone can catch without looking twice at it.
Maybe you can use: Unbeatable, Unparalleled, Premium or something similar.
Headline: Maybe it should be better if it puts more fear to the reader's eyes or give them the choice of doubts. Simple headlines like "Is Your Sensitive Information Secure?" or "How Secure is Your Sensitive Information?" may touch visitor's interest better.
Add some real world cases where your product helped Company XYZ prevent data breaches. Add some fancy technological terms in the form of a product specification. Even though some visitors still have no clue what X or Y feature or technology is about, it may give them the sense of something really sophisticated.
Lastly, grab something from other big players who have been in this field for quite some time. Here are a few hints:
https://www.symantec.com/products/ga...ail-encryption
https://www.mcafee.com/us/products/c...rotection.aspx
https://www.cisco.com/c/en/us/produc...ion/index.html
Hope this helps 
It is not really clear what you are selling so you should bring that above the fold. You also have some pretty bold claims, and I am sure many people (including me) will be sceptical. You really need to back them up more. Finally, I am not sure people will be willing to pay $299.00 per year for AES 256 encryption ... but if you can convince them to do so, more power to you.