Dream of Transparent & Secure CEX
CEO at HAI Group Co-Founder and Chairman at Hacken
Sergii GrybniakKey Ideas
- 10 essential transparency steps for CEX:
- Financial accountability: Full-scope audits beyond proof-of-reserves (include all liabilities, not just user deposits)
- Broker vs exchange differentiation: Most "exchanges" are brokers transferring assets elsewhere - must disclose this
- On-chain verification: Circulation supply, unlock schedules, bridge monitoring - CMC/CoinGecko don't verify project claims
- Investor disclosure: Due diligence on token investors, entry prices, vesting schedules, wallet tracking
- Verified user metrics: Holders count, average holding time, trader vs holder ratio (currently hidden, enables selling non-existent tokens)
- Security framework: Certifications, bug bounties, penetration tests, supply chain security (Bybit hack example)
- Blockchain security: Node upgrades, proper maintenance (constant small hacks unreported)
- IT control audits: Can exchanges manipulate prices? October crash example - need forensic proof they didn't benefit
- Live stolen crypto monitoring: Better victim response, fund blocking with court orders (99.9% crypto not recovered)
- Real-time blacklisting: Industry-wide cooperation on flagged addresses
- Core problems: Exchanges lie constantly, no accountability, treat listing fees as bribes (5-10% supply), dump on retail
- Regulatory gap: No global regulator, traditional finance seeing opportunity, exchanges failing self-regulation
- Recommendation: Use DEXs, don't keep funds on CEX, learn self-custody
Dyma brings a rare combination: deep auditing expertise from his years at Deloitte and Ukrainian state agencies, paired with an unwavering commitment to transparency and security in the blockchain space. Since founding Hacken in 2017, he has transformed it into one of the world's most trusted blockchain security auditors, helping to establish the security standards that protect billions in digital assets.
His work addresses a fundamental challenge facing Ukraine and the global crypto economy: how do we build trustless systems that actually earn trust? As Co-Chair of the EEA DRAMA group and Vice President of the Blockchain Association of Ukraine, Dyma champions the highest security standards and pushes for greater transparency—essential ingredients for the Trustless Society that blockchain promises.
In the context of Ukraine's reconstruction, Dyma's perspective is invaluable. Building secure, auditable systems isn't just about protecting assets—it's about creating the digital infrastructure that can support transparent governance, accountable institutions, and economic resilience. His insights will help us understand how security and trust form the foundation upon which Ukraine can rebuild stronger.
Join us to hear from one of the Top 50 Ukrainian entrepreneurs who is shaping the security architecture of Web3.