App can't be opened because the developer can't be verified
This is macOS protecting you — Gatekeeper checks that apps are signed by trusted developers. If you downloaded the app from a trusted source, it's safe. Go to System Settings → Privacy & Security and you'll see an 'Open Anyway' button next to the app name.
Gatekeeper is macOS's security feature that checks whether apps come from trusted developers before letting you run them. If an app isn't officially signed or the developer isn't in Apple's database, macOS blocks it. This is a safety feature, but if you downloaded the app from a company you trust, it's safe to override.
- ✓Have the app file ready to open
- ✓Know where you downloaded the app from (official website, trusted source, etc.)
- ✓Be ready to enter your password if System Settings asks
Fix-IT-Bot will walk you through each step, just tap, no typing needed.
Skip, I just want a technicianCommon mistakes to avoid
- Assuming the warning means the app is dangerous — it just means it's not officially signed by Apple
- Not checking the app source before clicking 'Open Anyway' — only do this for apps you trust
- Closing the warning dialog thinking it will go away — you need to click 'Open Anyway' to override it
Signs you need professional help
- You've clicked 'Open Anyway' but the app still won't open or shows a different error. The app is from a trusted company and you're not comfortable overriding the security warning. Gatekeeper keeps blocking an official App Store app.
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