1. The string is an encoded (URL-encoded) local file path The string you provided is not a real protocol, standard, or official keyword. It is a URL-encoded absolute file path .
It is not possible to write a meaningful, long-form article about the specific string callback-url-file-3A-2F-2F-2Fhome-2F-2A-2F.aws-2Fcredentials as a legitimate technology keyword or standard. callback-url-file-3A-2F-2F-2Fhome-2F-2A-2F.aws-2Fcredentials
If we decode the %3A , %2F , and %2A characters back to their original form, it reads: It is not possible to write a meaningful,
| Your original string's intent | Correct article topic | | :--- | :--- | | The file:// protocol & local files | | | Reading .aws/credentials via a callback | [Protecting AWS credentials from SSRF and open redirect attacks] | | URL-encoded file paths in OAuth | [Proper OAuth callback URL validation: why local file paths must be blocked] | Sample article outline for the correct topic: "Preventing SSRF attacks that target AWS credentials" Title: The $100,000 Mistake: How a file:// callback path exposes your AWS keys callback-url-file-3A-2F-2F-2Fhome-2F-2A-2F.aws-2Fcredentials