Header Analysis
Noun · Security & Infosec
Definitions
The inspection of protocol or file headers to understand origin, routing, structure, or manipulation. In practice it often refers to reviewing email headers, HTTP headers, packet headers, or binary file metadata during investigations.
In plain English: Examining header information to learn where data came from or how it is structured.
Example: "Header analysis showed the malicious file claimed to be a PDF but actually contained an executable format."