Horizen
Horizen technology offerings and crypto advisory services help organizations leverage the blockchain to solve a broad range of complex use cases. With deep experience in the crypto space, our passionate and committed team of blockchain experts, solution architects, product managers, and developers are accelerating the adoption of blockchain technology by focusing on the critical components of security, confidentiality, speed, and innovation. With unprecedented successes—including the ApeCoin launch—Horizen delivers value at scale.
PoC required
KYC required
Select the category you'd like to explore
Assets in Scope
Impacts in Scope
Network not being able to confirm new transactions (total network shutdown)
Unintended permanent chain split requiring hard fork (network partition requiring hard fork)
Direct loss of funds
Permanent freezing of funds (fix requires hardfork)
Public RPC API crash
Unintended chain split (network partition)
Transient consensus failures
Out of scope
The following impacts and attack vectors are excluded from rewards by default for all Immunefi bug bounty programs:
- Attacks that the reporter has already exploited themselves, leading to damage
- Attacks requiring access to leaked keys/credentials
- Attacks requiring access to privileged addresses (governance, strategist), except in such cases where the contracts are intended to have no privileged access to functions that make the attack possible
- Broken link hijacking is out of scope
Smart Contracts and Blockchain/DLT
- Basic economic governance attacks (e.g. 51% attack)
- Lack of liquidity
- Best practice critiques
- Sybil attacks
- Centralization risks
Blockchain/DLT:
- Any assets under Horizen mainnet are out of scope. Only Gobi and Horizen testnets are valid.
- Any attack requiring the majority of the mining hashrate
- Attacks requiring MITM or physical access to a user's device
- Previously known vulnerable libraries without a working Proof of Concept.
- Rate limiting or bruteforce issues on non-authentication / local endpoints (e.g., RPCs, websocket)
- Application Flood Attacks on exposed ports
Prohibited Activities:
The following activities are prohibited by this bug bounty program. Violation of these rules can result in a temporary suspension or permanent ban from the Immunefi platform at the sole discretion of the Immunefi team, which may also result in: 1) the forfeiture and loss of access to all bug submissions, and 2) zero payout.
Please note that Immunefi has no tolerance for spam/low-quality/incomplete bug reports, “beg bounty” behavior, and misrepresentation of assets and severity. Immunefi exists to protect the global crypto community, not facilitate grift.
Prohibited:
- Any testing with mainnet or public testnet deployed code; all testing should be done on private testnets
- Attempting phishing or other social engineering attacks against our employees and/or customers
- Any testing with third party systems and applications (e.g. browser extensions) as well as websites (e.g. SSO providers, advertising networks)
- Any denial of service attacks
- Automated testing of services that generates significant amounts of traffic
- Public disclosure of an unpatched vulnerability in an embargoed bounty
- Any other actions prohibited by the Immunefi Rules. These rules are subject to change at any time.