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Three Quick Online Checks to See If You’ve Been Compromised

November 20, 2025 · IT Security
Silhouette of a person looking through a large magnifying lens into a green digital cybersecurity grid with text about checking if you are secure or compromised.

Each Thursday morning on KFGO, we talk about simple ways to stay safer online. This week, I covered three free tools you can use right now to check whether your accounts, your website, or your domain might be at risk. You don’t need to be tech savvy to use them. These services give you quick answers, and they’re trusted by security professionals around the world.

Here’s what each one does and why it matters.

1. Have I Been Pwned — Check if Your Accounts Have Been Breached

Website: https://haveibeenpwned.com/

Have I Been Pwned is a well-known service that lets you check whether your email address or phone number has appeared in a data breach. These breaches happen when a website or company gets hacked and user information is leaked. Even if you’ve never done anything wrong, your data could be sitting in a list that criminals use to break into accounts.

When you run your email through the site, it tells you which breaches you’ve been a part of and what type of information was exposed. That gives you a starting point for changing passwords, enabling two-factor authentication, and securing your accounts before someone else gets access.

2. Sucuri Website Security Checker — Scan Your Website for Malware or Vulnerabilities

Website: https://sitecheck.sucuri.net/

If you own a business website, this one is worth bookmarking. Sucuri’s Website Security Checker scans your site for malware, known infections, spam injections, outdated software, and anything that might make visitors unsafe.

Cybercriminals often go after small business websites because they know most aren’t monitored regularly. A site can be hacked quietly, and you might not notice until Google flags it or customers report strange pop-ups.

A quick scan gives you a health report. If something looks suspicious, you’ll know before it becomes a bigger problem.

3. dmarcian Domain Checker — Make Sure Your Email Isn’t Being Spoofed

Website: https://dmarcian.com/domain-checker/

DMARC protects your domain from being impersonated. Without proper DMARC, DKIM, and SPF settings, scammers can send emails that look like they came from you. That puts your customers, vendors, and employees at risk of phishing attacks.

The Domain Checker shows whether your domain is protected or wide open. If it says “DMARC not found,” your email is vulnerable to spoofing. It’s one of the most important security checks for any business that sends email.

Why These Tools Matter Together

Each tool looks at a different layer of your digital footprint.

  • Have I Been Pwned checks your personal and business accounts.
  • Sucuri checks your website.
  • dmarcian checks your email domain.

Together they give you a quick snapshot of your online security. You don’t need to guess. You can see where the problems are and take the next step.

How DarkHorse IT Can Help

If any of these tests show issues, we can help you fix them.

  • Compromised accounts:
    We offer in person consulting sessions where we walk you through securing your accounts, setting up a password manager, enabling two-factor authentication, and recovering from breaches.
  • Website infections or vulnerabilities:
    We can clean up malware, secure WordPress sites, update outdated software, and lock things down so the problem doesn’t return.
  • DMARC, DKIM, and SPF configuration:
    We set up domain authentication so your email can’t be spoofed. This protects your reputation and keeps your customers and staff safe from impersonation scams.

We help both businesses and residential clients, and our goal is always to make security simple and understandable.

Quick Tips

  • Change passwords for any account that shows up in a breach.
  • Enable two-factor authentication on everything important.
  • Scan your website regularly, even if everything seems fine.
  • Make sure your business domain passes DMARC checks so no one can pretend to be you.

Wrap-Up

These tools are free, fast, and can save you from major headaches down the road. If you find anything concerning or you’d like help making sure everything is secure, DarkHorse IT is here for you. We work with both homes and businesses across the Red River Valley and beyond.

Visit us anytime at https://darkhorseit.com, check out our weekly KFGO tech blog at https://kfgo.darkhorseit.com, or tune in every Thursday at 7:40 AM on Facebook Live or KFGO Radio.

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