If you discover a security vulnerability in SunHat, please report it responsibly.
Do not open a public GitHub issue for security vulnerabilities.
Instead, email: security@sunhat.app
Include:
- Description of the vulnerability
- Steps to reproduce
- Potential impact
- Suggested fix (if any)
We will respond within 48 hours and work with you to understand and address the issue.
SunHat is a privacy-focused iOS app. The following are in scope:
- Data leakage (location, reminder data, user preferences)
- Unauthorized data access or exfiltration
- Injection attacks via notification deep-links or App Intents
- Weather data manipulation or spoofing
- Physical attacks on devices
- Social engineering
- Issues in third-party services (Apple WeatherKit, iCloud)
SunHat stores all data locally on-device. The only data that leaves the device is weather queries to Apple WeatherKit (coordinates sent to fetch a forecast). There are no accounts, no analytics, and no third-party SDKs.
If you find a way to exfiltrate data from the app, that is a critical vulnerability. Please report it immediately.