Bifrost-logo

Bifrost

Bifrost is a Liquid Staking app-chain tailored for all blockchains, utilizing decentralized cross-chain interoperability to empower users to earn staking rewards and DeFi yields with flexibility, liquidity, and high security across multiple chains.

Polkadot
Defi
Crosschain Liquidity
Lending
Staking
Rust
Maximum Bounty
$500,000
Live Since
29 June 2022
Last Updated
28 July 2025
  • PoC Required

Rewards

Bifrost provides rewards in BNC on Polkadot, denominated in USD.

Rewards by Threat Level

Blockchain/DLT
Critical
Max: $500,000Min: $20,000
Primacy of Rules
High
Max: $20,000Min: $5,000
Primacy of Rules
Medium
Max: $5,000Min: $1,000
Primacy of Rules
Websites and Applications
Critical
Max: $5,000Min: $2,000
Primacy of Rules
High
Max: $2,000Min: $1,000
Primacy of Rules
Medium
Flat: $1,000
Primacy of Rules

Rewards are distributed according to the impact of the vulnerability based on the Immunefi Vulnerability Severity Classification System V2.3. This is a simplified 4-level scale, with separate scales for websites/apps, smart contracts, and blockchains/DLTs, focusing on the impact of the vulnerability reported.

All web/app bug reports must come with a PoC with an end-effect impacting an asset-in-scope in order to be considered for a reward. Explanations and statements are not accepted as PoC and code is required.

Payouts are handled by the Bifrost Finance team directly and are denominated in USD. However, payouts are done in BNC.

Reward Calculation for Critical Level Reports

Reward amount is 10% of the funds directly affected, capped at the maximum critical reward of: $100,000

For critical Blockchain/DLT bugs, the reward is dependent on the ratio between the funds at risk, which includes all affected projects on top of the respective blockchain/DLT, and the market cap according to the average between CoinMarketCap.com and CoinGecko.com, calculated at the time the bug report is submitted.

Program Overview

Bifrost is a Liquid Staking app-chain tailored for all blockchains, utilizing decentralized cross-chain interoperability to empower users to earn staking rewards and DeFi yields with flexibility, liquidity, and high security across multiple chains.

For more information about Bifrost, please visit https://bifrost.io

KYC not required

No KYC information is required for payout processing.

Proof of Concept

Proof of concept is always required for all severities.

Responsible Publication

Category 3: Approval Required

Prohibited Activities

Default prohibited activities
  • Any testing on mainnet or public testnet deployed code; all testing should be done on local-forks of either public testnet or mainnet
  • Any testing with pricing oracles or third-party smart contracts
  • 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 that are executed against project assets
  • 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

Feasibility Limitations

The project may be receiving reports that are valid (the bug and attack vector are real) and cite assets and impacts that are in scope, but there may be obstacles or barriers to executing the attack in the real world. In other words, there is a question about how feasible the attack really is. Conversely, there may also be mitigation measures that projects can take to prevent the impact of the bug, which are not feasible or would require unconventional action and hence, should not be used as reasons for downgrading a bug's severity.

Therefore, Immunefi has developed a set of feasibility limitation standards which by default states what security researchers, as well as projects, can or cannot cite when reviewing a bug report.