Secure brand name used by a professional service or product. Based on the word "encryption".
The word "encryptonic" contains 11 characters and four syllables. Successful brands using four syllable names include ESPN, Panasonic and Airbnb.
Encryptonic.com is a .com domain. Dot com domains are synonymous with websites. Once secured, a .com all but guarantees no-one else can outrank you for your own name in the long run.