Disclosure Policy

Do not disclose any bug or vulnerability on public forums, message boards, mailing lists, etc. prior to responsibly disclosing to Nighthawk Apps and giving sufficient time for the issue to be fixed and deployed. Do not execute on or exploit any vulnerability.

Reporting a Bug or Vulnerability

When reporting a bug or vulnerability, please provide the following to nighthawkwallet@protonmail.com

A short summary of the potential impact of the issue (if known). Details explaining how to reproduce the issue or how an exploit may be formed. Your name (optional). If provided, we will provide credit for disclosure. Otherwise, you will be treated anonymously and your privacy will be respected. Your email or other means of contacting you. A PGP key/fingerprint for us to provide encrypted responses to your disclosure. If this is not provided, we cannot guarantee that you will receive a response prior to a fix being made and deployed.

Encrypting the Disclosure

We highly encourage all disclosures to be encrypted to prevent interception and exploitation by third-parties prior to a fix being developed and deployed. Please encrypt using the PGP public key with fingerprint: 8c07e1261c5d9330287f4ec35aff0fd018b01972


There are some known areas for improvement:

  • lightwalletd is under active development, some features are more stable than others.
  • The service depends upon zcashd, the underlying Zcash node implementation.
  • The code has not been subjected to a thorough review by an external auditor, and recent code changes have not yet received security review from Electric Coin Company security team or Taylor Hornby, Zcash Community Grants code auditor.

Developers should familiarize themselves with the wallet app threat model, since it contains important information about the security and privacy limitations of light wallets that use lightwalletd.

For more information regarding the security and privacy limitations of the wallet, please refer to the Wallet App Threat Model.