For field use
Visual Guide · Digital

Compromised Laptop?

How to spot a machine that may no longer be clean.

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Why it matters
Threat level is elevated; stay alert
Attackers prize persistence and stealth
Stolen data leaves over the network
Catch the breach before it spreads

Attacker Goals

  • Exfiltrate your data quietly
  • Establish persistence and access
  • Capture credentials and tokens
  • Open a hidden command channel

Warning Signs

  • Notice sudden slowness or crashing
  • Watch fans and heat while idle
  • Flag faster battery drain
  • Spot pop-ups and changed homepages

System Indicators

  • Check unknown startup apps and tasks
  • Look for new admin accounts
  • Confirm antivirus and firewall stay on
  • Audit unfamiliar software and extensions

Surveillance Cues

  • Catch the camera or mic activating alone
  • Watch for the webcam light when idle
  • Note keystroke monitoring behavior

Network Red Flags

  • Trace unexplained outbound traffic
  • Investigate login alerts from new places
  • Distrust unrequested password resets

Account Red Flags

  • Review cloud files syncing on their own
  • Check contacts getting messages you never sent
  • Confirm no privileges changed silently

Quick Triage

  • Disconnect Wi-Fi and unplug ethernet
  • Avoid logging into banking or sensitive sites
  • Isolate the machine immediately

Contain

  • Treat the device as untrusted
  • Preserve evidence before wiping
  • Change credentials from a clean machine
01

Detect

Read the warning signs

02

Inspect

Check system and network indicators

03

Isolate

Disconnect and stop logging in

04

Contain

Preserve, then reset from clean

Think like an adversary, and the machine confesses.

Digital