Manage Both Digital Footprints (OPSEC)

Core idea

Every online action leaves a footprint. An investigator must manage two sets: the subject’s footprint (mapping them) and their own (minimising it). Failing to protect your own footprint exposes you to being identified by the subject.

Components

• Subject’s footprint: map and collect it.
• Your own footprint: minimise it.
• Use a dedicated browser profile.
• Use a VPN or Tor.
• Use separate accounts where direct interaction is needed.

When to use

Whenever conducting investigations, especially before any active interaction with a subject or when investigating hostile or criminal actors.

Example

Running all investigation queries from a dedicated browser profile behind a VPN, with no personal accounts signed in, so activity cannot be traced back to your real identity.

Related

Passive vs Active OSINT, Investigation Risk Categories & Mitigations, Pre-Investigation Readiness Checklist