Exchanging cryptocurrencies and stablecoins

We help you to cash and to buy BTC, ETH, USDT, USDC, BUSD, etc. with low commissions. 


Please use the website of our exchanger H-X.biz.



Business cases of projects we completed

Audit of smart contracts and blockchain
Business Automation
Information security incident response and investigation
Managed security and compliance (ISO 27001, etc.)
Security analysis of software source code
Security assessment: audits and penetration tests
Security Operations Center cases