"HEX's network has never had any "inflation bugs". Bitcoin has had 2 "inflation bugs" where someone could mint infinite free bitcoin for themselves. The CVE-2010-5139 bug was announced on 2010-8-15 minted 184 Billion BTC and required a chain roll back. The CVE-2018-17144 bug was announced on 2018-09-17 and was discovered by a BitcoinCash developer, who disclosed it instead of exploiting it.
HEX solves this by locking its economics code in an immutable smart contract, so network improvements and their possibility of bugs are kept far from the most important code. The last Bitcoin "unlimited free coins" inflation bug was created by adding an optimization to the networking stack.
HEX's code has had two professional, independent security audits. BTC has had none.
HEX's network has a successful bug bounty program. Bitcoin does not."
From Hex.com