Typorithm · medium

Monitor Your Exposure

monitor-exposureosintmonitoringbreach-alertsbrand

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Full lesson · 8 learning steps Open any exercise for focused practice

Step 1 of 8 · intro card

Learn Monitor Your Exposure

Footprint Defense

Continuous monitoring catches new exposure early: credential-breach alerts via Have I Been Pwned domain monitoring, brand and lookalike-domain watching, paste-site and code-repo leak scanning, and certificate-transparency log monitoring.

Defense is not a one-time audit; exposure keeps appearing. Credential-breach monitoring such as Have I Been Pwned domain alerts notifies you the moment an address on your domain shows up in a new dump.

Beyond credentials, watch your brand: track mentions and lookalike domains that signal impersonation or phishing, and scan paste sites and public code repositories for leaked secrets and source code.

Certificate-transparency log monitoring surfaces new subdomains and rogue certificates issued for your domain. Turning OSINT inward — and acting on every alert — is how a team defends the organization.

HIBP domain alerts flag breached credentials.

Watch brand mentions, lookalikes, pastes, and repos.

CT-log monitoring reveals new and rogue certs.

monitoring:
  credentials: hibp-domain-alerts
  brand: mentions-and-lookalikes
  leaks: paste-and-repo-scanning
  certs: ct-log-monitoring
  alerting: act-on-new-exposure

Read the implementation

Connect each part of the code to the concept before you type.

1. Breach alerts

Have I Been Pwned domain monitoring alerts you when any address on your domain appears in a new breach.

credentials: hibp-domain-alerts

2. Brand watch

Watching for brand mentions and lookalike domains catches impersonation and phishing setups early.

brand: mentions-and-lookalikes

3. Leak scanning

Scanning paste sites and public code repos finds leaked credentials and source before attackers exploit them.

leaks: paste-and-repo-scanning

4. CT logs

Certificate-transparency log monitoring reveals new subdomains and rogue certs issued for your domain.

certs: ct-log-monitoring

5. Act on alerts

Monitoring only helps if alerts trigger action — rotate credentials, take down impostors, and investigate fast.

alerting: act-on-new-exposure

A complete learning loop

Understand

Read the concept map and follow the code breakdown.

Reconstruct

Type the implementation, repair mistakes and work through every recall exercise.

Verify

Use the final check without hints; revisit weak concepts in short practice sessions.