Giovanni Mazzeo

Web3 Entrepreneur · Senior Software Engineer · Associate Professor

I am a Web3 entrepreneur, senior software engineer, and Associate Professor of Computer Security, working at the intersection of blockchain protocols, confidential computing, and trusted execution environments.

I am currently CIO at Trillion.xyz, a company building a decentralized exchange with trust and verification properties while, at the same time, ensuring high-performance execution. My role at Trillion is to lead and conduct applied research that directly supports the design of cutting-edge security solutions. The core research is focused in combining zero-knowledge proofs with trusted execution environments, thus enabling hybrid proof architectures that balance efficiency and verifiability in layer-2 systems.

Previously, at Credora (formerly X-Margin), I led the design and development of a decentralized application enabling community-based DeFi asset risk scoring. The platform allowed distributed contributors to provide and validate risk signals, which were aggregated through cryptographically verifiable attestations to produce transparent, on-chain risk metrics for DeFi protocols. This work supported Credora's growth phase and fundraising by delivering a novel, decentralized approach to credit and risk assessment in DeFi.

I hold a PhD in Information Technology, with research focused on trustworthy cloud provisioning and data-in-use protection using emerging CPU security extensions. Alongside my entrepreneurial activities, I am an Associate Professor and Researcher of Computer Security at the University of Naples Parthenope, where I conduct research on confidential computing and blockchain. I have authored over 60 peer-reviewed publications and have served as principal investigator or technical lead in multiple EU-funded Horizon projects.

My work focuses on turning cutting-edge security research into real-world, production-grade Web3 infrastructure.


Featured Publications

Proof of Trusted Execution: A Consensus Paradigm for Deterministic Blockchain Finality

Habib, K.; Kapitsyn, V.; Mazzeo, G.; Mehrban, F.

2025 arXiv preprint. Under review at Middleware 2026 conference.

Enhancing the Security of Rollup Sequencers using Decentrally Attested TEEs

Cristiano, G. M.; D'Antonio, S.; Giglio, J.; Mazzeo, G.; Romano, L.

2025 arXiv preprint. Under review at IEEE Transactions on Emerging Topics in Computing.

A Blockchain Solution for Decentralized Content Verification and its Application to Deepfake Detection and Fintech Credit Scoring

Coppolino, L.; Cristiano, G. M.; D'Antonio, S.; Giglio, J.; Mazzeo, G.; Romano, L.

2025 Blockchain: Research and Applications.

An Experimental Evaluation of TEE Technology: Benchmarking Transparent Approaches Based on SGX, SEV, and TDX

Coppolino, L.; D'Antonio, S.; Mazzeo, G.; Romano, L.

2025 Computers & Security.

WASMBOX: A Lightweight WASM-based Runtime for Trustworthy Multi-Tenant Embedded Systems

Coppolino, L.; D'Antonio, S.; Mazzeo, G.; Nardone, R.; Romano, L.; Schmitt, M.

2024 IEEE Transactions on Emerging Topics in Computing.

A Comprehensive Trusted Runtime for WebAssembly with Intel SGX

Ménétrey, J.; Pasin, M.; Felber, P.; Schiavoni, V.; Mazzeo, G.; Hollum, A.; Vaydia, D.

2023 IEEE Transactions on Dependable and Secure Computing.

The Alliance of HE and TEE to Enhance their Performance and Security

D'Antonio, S.; Lazarou, G.; Mazzeo, G.; Stan, O.; Zuber, M.; Tsavdaridis, I.

2023 IEEE International Conference on Cyber Security and Resilience (CSR).

Enabling Trusted TEE-as-a-Service Models with Privacy-Preserving Automatons

Subramanyan, B.; Hollum, A.; Mazzeo, G.; Ficke, M.; Vaydia, D.

2023 IEEE CloudCom.

SGXTuner: Performance Enhancement of Intel SGX Applications via Stochastic Optimization

Mazzeo, G.; Arnautov, S.; Fetzer, C.; Romano, L.

2021 IEEE Transactions on Dependable and Secure Computing.

Facing the Blockchain Endpoint Vulnerability: an SGX-based Solution for Secure eHealth Auditing

Coppolino, L.; D'Antonio, S.; Mazzeo, G.; Romano, L.; Campegiani, P.

2021 ITASEC.

VISE: Combining Intel SGX and Homomorphic Encryption for Cloud Industrial Control Systems

Coppolino, L.; D'Antonio, S.; Formicola, V.; Mazzeo, G.; Romano, L.

2020 IEEE Transactions on Computers.

A Comparative Analysis of Emerging Approaches for Securing Java Software with Intel SGX

Coppolino, L.; D'Antonio, S.; Mazzeo, G.; Romano, L.

2019 Future Generation Computer Systems.

Hardening ROS via Hardware-Assisted Trusted Execution Environment

Staffa, M.; Mazzeo, G.; Sgaglione, L.

2018 IEEE RO-MAN.

Exploiting New CPU Extensions for Secure Exchange of eHealth Data at the EU Level

Coppolino, L.; D'Antonio, S.; Mazzeo, G.; Romano, L.; Sgaglione, L.

2018 IEEE EDCC.

Secure Cloud Microservices Using Intel SGX

Brenner, S.; Hundt, T.; Mazzeo, G.; Kapitza, R.

2017 IFIP International Conference on Distributed Applications and Interoperable Systems (DAIS).


Talks & Presentations

TEEs in Web3: Powering Rollups, Consensus, and Real-World Exchange Infrastructure

2026 Open Confidential Computing Conference 2026

Trusted Execution Environments: Shielding data-in-use from the Edge to the Cloud

2025 10th Italian Workshop on Embedded Systems

An Experimental Evaluation of TEE technology Evolution: Benchmarking Transparent Approaches based on SGX, SEV, and TDX

2024 Confidential Computing Summit 2024

Awesome Trusted Execution Environment

2023 Tutorial at IEEE/IFIP DSN 2023 conference

The road to Verifiable TEE-as-a-service models, where we are and where we are headed

2023 "New Software Abstractions For Hardware Security Technology", 2023


Skills

Trusted Execution Environments

  • Intel SGX
  • AMD SEV
  • Intel TDX
  • TEE-as-a-Service
  • Confidential Computing

Zero-Knowledge Proofs

  • ZK-SNARKs
  • ZK-STARKs
  • Hybrid Proof Architectures
  • Verifiable Computation
  • Privacy-Preserving Protocols

Blockchain & Web3

  • Smart Contracts (Solidity, Rust)
  • Layer 2 Solutions
  • DeFi Protocols
  • Consensus Mechanisms
  • EVM & Multi-chain
Programming Languages & Frameworks
  • Rust - Systems programming, Substrate, Solana
  • Solidity - Smart contract development
  • Python - Research, tooling, automation
  • C/C++ - Low-level systems, performance
  • Hardhat / Foundry - Smart contract frameworks
  • Web3 Libraries - Web3.js, Ethers.js, viem
  • Security Tools - Slither, Mythril, formal verification
  • IPFS / Arweave - Decentralized storage
Development Practices
  • Security-first development & threat modeling
  • Test-driven development (TDD) & formal verification
  • Performance optimization & benchmarking
  • Research-to-production pipeline

Software

PoTE-Lighthouse

Patched lighthouse EVM client with Proof of Trusted Execution consensus

View on GitHub

ERC-20 Token Balance Tracker

Track and monitor ERC-20 token balances across multiple addresses

View on GitHub

BAM (Block Assembly Marketplace)

Smart routing for block assembly marketplace

View on GitHub

SGX Tuner

A tool for optimizing performance of Intel SGX runtimes

View on GitHub

And many other private repositories


Get In Touch

Interested in collaborating on a Web3 project? Let's build the decentralized future together.