Alpen gives developers the freedom to program nearly any locking conditions for BTC imaginable, limited only by the Alpen block size and gas limits.

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

Permanent freezing of funds

Temporary freezing of funds

Execute arbitrary system commands

Retrieve sensitive data/files from a running server, such as:
- /etc/shadow
- database passwords
- blockchain keys (this does not include non-sensitive environment variables, open source code, or usernames)

Taking down the application/website

Injection of malicious HTML or XSS through metadata

Injecting/modifying the static content on the target application without JavaScript (persistent), such as:
- HTML injection without JavaScript
- Replacing existing text with arbitrary text
- Arbitrary file uploads, etc.

Changing sensitive details of other users (including modifying browser local storage) without already-connected wallet interaction and with up to one click of user interaction, such as:
- Email
- Password of the victim etc.

Improperly disclosing confidential user information, such as:
- Email address
- Phone number
- Physical address, etc.

Subdomain takeover without already-connected wallet interaction

Codebase

Documentation

Rewards are distributed according to the impact of the vulnerability based on the Immunefi Vulnerability Severity Classification System V2.3. 

__Reward Calculation for Critical Level Reports__

For critical smart contract bugs on testnet assets, the reward is paid as a flat amount of USD 2 500. This is because there are no actual funds at risk.

__Reward Calculation for High Level Reports__

For smart contract bugs on testnet assets, the reward is paid as a flat amount of USD 2 500. This is because there are no actual funds at risk.

__Reward Payment Terms__

Payouts are handled by the **Alpen Labs** team directly and are denominated in **USD**. However, payments are done via wire transfer.