You Might Already Be Compromised
Most organizations don't discover credential leaks until after an incident occurs. By then, attackers have had weeks or months to exploit stolen passwords. Here are five signs that your corporate credentials may already be circulating on the dark web.
1. Unusual Login Attempts
If your security logs show a spike in failed login attempts — especially from unexpected geographic locations — it could indicate that attackers are testing credentials found in stealer logs against your systems.
What to look for: Failed logins from IP addresses in regions where you have no employees or customers, particularly against VPN, email, and admin portals.
2. Employees Report Account Takeovers on Other Services
When an employee's personal account (social media, shopping, gaming) gets compromised, it's often because malware harvested all their saved passwords — including their corporate ones.
The connection: Info-stealers don't discriminate. They grab everything. If personal accounts are being taken over, the same stealer log likely contains your corporate credentials too.
3. Phishing Emails That Reference Internal Details
If phishing emails targeting your organization contain specific internal details (project names, colleague names, internal terminology), attackers may have already gained access to email accounts using leaked passwords.
Why it matters: This level of detail suggests credential-based access, not simple social engineering.
4. Your Industry Is Heavily Targeted
Certain sectors face disproportionate credential harvesting: financial services, healthcare, government, and technology companies are primary targets. If you operate in these industries, the probability of exposure is significantly higher.
The data: Financial services organizations find credentials in stealer logs at 3x the rate of other industries.
5. You've Never Checked
The most common sign is the simplest: you've never looked. Organizations that don't actively monitor for credential exposures are, by definition, unaware of them.
The average time between credential theft and discovery is 287 days. During that window, attackers have unlimited opportunity to exploit stolen passwords.
What To Do Right Now
- Run a domain scan — Check if any credentials associated with your corporate email domain have appeared in stealer logs
- Enable MFA — Immediately protect critical systems with multi-factor authentication
- Set up continuous monitoring — One-time scans catch today's leaks. Continuous monitoring catches tomorrow's
- Create an incident response plan — Know exactly what to do when (not if) credentials are found
Don't Wait for the Breach
The cost of a credential-based breach averages $4.45 million. The cost of monitoring your domain is a fraction of that.