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# Trezor Firmware
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## Contribute
Inspired by [GitLab Contributing Guide ](https://docs.gitlab.com/ee/development/contributing/ )
### Security vulnerability disclosure
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Please report suspected security vulnerabilities in private to [security@satoshilabs.com ](mailto:security@satoshilabs.com ), also see [the disclosure section on the Trezor.io website ](https://trezor.io/security/ ). Please do NOT create publicly viewable issues for suspected security vulnerabilities.
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### Issue Labels
#### Priority
Label | Meaning (SLA)
----------|--------------
P1 Urgent | The current release + potentially immediate hotfix (30 days)
P2 High | The next release (60 days)
P3 Medium | Within the next 3 releases (90 days)
P4 Low | Anything outside the next 3 releases (120 days)
#### Severity
Label | Impact
------------|-------
S1 Blocker | Outage, broken feature with no workaround
S2 Critical | Broken feature, workaround too complex & unacceptable
S3 Major | Broken feature, workaround acceptable
S4 Low | Functionality inconvenience or cosmetic issue
