Report a security vulnerability

Safety & reporting 2 min readLast updated October 3, 2026

How to report a security issue responsibly, what to include, what we ask you not to do, and how we handle the report.

Before you start

  • Please do not test anything against other people's accounts, and do not access, change or delete data that is not yours.
  • Tell us privately first, and give us a reasonable chance to fix it before saying anything publicly.

How to report

  1. 1Open a ticket from the help centre and choose "Security vulnerability".
  2. 2Describe the issue and how you found it, with steps we can follow.
  3. 3Include the address or screen it affects, and what an attacker could do with it.
  4. 4If you have a proof of concept, attach it in the ticket rather than sending it around.
  5. 5If you prefer email, send it to support@nertz.app with the subject "Security".

What we ask of you

  • Work only against your own account and your own table.
  • Do not use the issue to access, change, share or destroy anybody else's data.
  • Do not run denial of service tests or automated scanning that could slow the game for players.
  • Give us reasonable time to fix the issue before publishing anything about it.
  • Keep the details private until it is fixed, then talk about it freely.

What we do

  • We read every security report and reply with what we found and what we plan to do.
  • We fix what needs fixing as quickly as the issue warrants, and we tell you when it is done.
  • We credit researchers who would like to be named, when they are happy to be.
  • We do not run a paid bug bounty programme, so we cannot promise a payment. We can promise that your report is read by a person and taken seriously.

If you think your account was accessed

  1. 1Reset your password straight away, and reset the password on the email account you use for Nertz! too.
  2. 2If you signed in with Google, review the apps with access to your account at myaccount.google.com and remove anything you do not recognise, then open a ticket so we can look at the account with you.

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