Horizon Protocol Smart Contracts — Mainnet Hacken Bug Bounty Program

Horizon Protocol
2 min readMar 20, 2024

In our ongoing efforts to ensure the safest trading environment for our users, we are pleased to announce a new bug bounty program for Horizon Protocol mainnet, hosted by HackenProof. As we continue to build and improve Horizon Protocol, we invite you to contribute your expertise to help ensure the security of our systems.

About Hacken:

Hacken, a cybersecurity firm, specializes in services like vulnerability assessment, penetration testing, and blockchain security to fortify organizations, with a focus on the blockchain and cryptocurrency sector. Additionally, Hacken operates HackenProof, a bug bounty platform connecting security researchers with companies seeking vulnerability assessments. Researchers are incentivized with monetary rewards or recognition for identifying and reporting software vulnerabilities through the facilitated process offered by HackenProof.

Bug Bounty Program:

To enhance the security of our protocol, we are looking for your keen eye in identifying any existing vulnerabilities. For this bug bounty program, we are especially interested in issues related to incorrect behavior of the smart contract which could cause unintended functionality. Examples can be found below, under the “Focus Area” header.


By helping us identify (critical) vulnerabilities, you are able to earn rewards. The reward amounts vary based on the severity and impact of the reported vulnerabilities.

  • Critical: $40,000 — $60,000
  • High: $20,000 — $40,000

Target: Horizon Protocol Smart Contracts

Focus Areas:

  • In-Scope: Stealing or loss of funds. Unauthorized transactions. Transaction manipulation. Attacks on logic (behavior of the code is different from the business description). Reentrancy. Reordering. Over and underflows.
  • Out of Scope: Theoretical vulnerabilities without proof. Old compiler versions. The compiler version is not locked. Vulnerabilities in imported contracts. Code style guide violations. Redundant code. Gas optimizations. Best practice issues.


Responsible and transparent reporting is essential. To help this process go smoothly, Hacken has set several guidelines. All participants must follow them, so make sure to read them on HackenProof. These include:

  • Program Rules
  • Disclosure Guidelines
  • Eligibility and Coordinated Disclosure

Get Started:

Ready to contribute to the security of Horizon Protocol? Visit HackenProof to get started!

Horizon Protocol is a DeFi platform that facilitates the on-chain trading of synthetic assets that represent the real economy. Horizon Protocol seeks to provide exposure to real-world assets risk/return profiles via smart contracts on the blockchain.