All smart contracts of Zenlink can be found at [https://github.com/zenlinkpro/zenlink-evm-contracts](https://github.com/zenlinkpro/zenlink-evm-contracts). However, only those in the Assets in Scope table are considered as in-scope of the bug bounty program.


Zenlink DEX Protocol is the underlying unified and universal cross-chain DEX Protocol, which enables parachains to quickly have DEX functionality and share liquidity with other parachains. In addition, Zenlink DEX Aggregator can connect to all DEX DApps on Polkadot, which together form the Zenlink DEX Network with full liquidity.

Any governance voting result manipulation

Direct theft of any user funds, whether at-rest or in-motion, other than unclaimed yield

Permanent freezing of funds

Miner-extractable value (MEV)

Protocol Insolvency

Ability to execute system commands

Extract Sensitive data/files from the server such as /etc/passwd

Stealing User Cookies

Taking Down the application/website

Bypassing Authentication

Signing transactions for other users

Redirection of user deposits and withdrawals

Subdomain takeover resulting in financial loss (applicable for subdomains with addresses published)

Wallet interaction modification resulting in financial loss

Direct theft of user funds

Tampering with transactions submitted to the user’s wallet

Submitting malicious transactions to an already-connected wallet

Theft of unclaimed yield

Temporary freezing of funds for at least 2 days

Permanent freezing of unclaimed yield

Smart contract unable to operate due to lack of token funds

Block stuffing for profit

Griefing (e.g. no profit motive for an attacker, but damage to the users or the protocol)

Unbounded gas consumption

Theft of gas

Rewards are distributed according to the impact of the vulnerability based on the [Immunefi Vulnerability Severity Classification System V2.2](https://immunefi.com/immunefi-vulnerability-severity-classification-system-v2-2). This is a simplified 5-level scale, with separate scales for websites/apps, smart contracts, and blockchains/DLTs, focusing on the impact of the vulnerability reported.

All 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. In addition, all bug reports must come with a suggestion for a fix in order to be considered for a reward. 

All issues previously highlighted in the following audit reports are also considered as out of scope: 
  - [https://github.com/zenlinkpro/zenlink-security-audit](https://github.com/zenlinkpro/zenlink-security-audit) 

Zenlink requires KYC to be done for all bug bounty hunters submitting a report and wanting a reward. The information needed is the name, country of residence and a passport photo. 

Payouts are handled by the __Zenlink__ team directly and are denominated in USD. However, payouts are done in __ZLK__.

Zenlink

Resources & Documentation