Evidence needs more than a file upload. A later reviewer should know what the file is, where it came from and whether it is the authoritative version.
Step 01
Name and describe
Use an approved naming convention and record the source, received date and relevance.
Step 02
Control versions
Identify the current authoritative document while retaining required history and legal-hold considerations.
Step 03
Verify access
Test download, scanning and visibility with representative authorized and unauthorized accounts.