Yes, this authorization process uses **OAuth 2.0**, the industry-standard protocol used by Google, Microsoft, Apple, and other major platforms.

Here's what makes it safe:

- **Your password is never shared** with the application — it only receives a limited access token
- **You control the permissions** — You can see exactly what the application is requesting before you approve
- **Access can be revoked** at any time from your Connected Apps settings
- **Tokens expire** automatically — even if you forget to revoke access, the token will eventually become invalid
- **All communication is encrypted** using HTTPS/TLS