ALEX

At ALEX, we build DeFi primitives targeting developers looking to build ecosystem on Bitcoin, enabled by Stacks. As such, we focus on trading, lending and borrowing of crypto assets with Bitcoin as the settlement layer and Stacks as the smart contract layer. At the core of this focus is the automated market making ("AMM") protocol, which allows users to exchange one crypto asset with another trustlessly.

For more information about ALEX, please visit https://alexgo.io/.

This bug bounty program is focused on their smart contracts and is focused on preventing:

• Thefts and freezing of principal of any amount
• Thefts and freezing of unclaimed yield of any amount
• Theft of governance funds
• Governance activity disruption

Rewards are distributed according to the impact of the vulnerability based on the Immunefi Vulnerability Severity Classification System V2.2. This is a simplified 5-level scale, with separate scales for websites/apps and smart contracts/blockchains, encompassing everything from consequence of exploitation to privilege required to likelihood of a successful exploit.

All High and Critical Smart Contract bug reports require a PoC in order to be considered for a reward. Explanations and statements are not accepted as PoC and code is required.

Critical smart contract vulnerabilities are capped at 10% of economic damage, primarily taking into consideration funds at risk, but also PR and branding aspects, at the discretion of the team. However, there is a minimum reward of USD 20 000 paid in ALEX. Additionally, the maximum reward is capped at USD 100 000) paid in ALEX, even if 10% of the damage in USD equivalent is greater than the USD 100 000.

The following vulnerabilities are not eligible for a reward:

• All vulnerabilities marked in the CoinFabrik Security Review Pool / Equation, Launchpad / Vault / Reserve
• All vulnerabilities marked in the CoinFabrik Security Review DAO
• All vulnerabilities marked in the CoinFabrik Security Review Launchpad v1.1 / AutoALEX / Collateral Rebalancing Pool
• All vulnerabilities marked in the CoinFabrik Security Review Bridge Endpoints
• All vulnerabilities marked in the CoinFabrik Security Review Bridge backend and endpoints
• All vulnerabilities marked in the Least Authority Security Review

ALEX requires KYC to be done for all bug bounty hunters submitting a report and wanting a reward. The information needed are Name, Email address, Stacks wallet address, and Identity Proof (Passport, / Driving License / National ID). The collection of this information will be done by the ALEX team.

Payouts are handled by the ALEX team directly. Payouts are done in ALEX.

The following vulnerabilities are excluded from the rewards for this bug bounty program:

• 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)

Smart Contracts and Blockchain

• Incorrect data supplied by third party oracles
  • Not to exclude oracle manipulation/flash loan attacks
• Basic economic governance attacks (e.g. 51% attack)
• Lack of liquidity
• Best practice critiques
• Sybil attacks
• Centralization risks

The following activities are prohibited by this bug bounty program:

• Any testing with mainnet or public testnet contracts; all testing should be done on private testnets
• 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
• Automated testing of services that generates significant amounts of traffic
• Public disclosure of an unpatched vulnerability in an embargoed bounty