Overview
Most organizations don't discover their credentials are compromised until it's too late — the average dwell time (time between breach and detection) is 287 days. Here are five warning signs that your corporate credentials may already be circulating on the dark web.
1. Unusual Login Attempts and Account Lockouts
If employees are reporting unexpected password reset emails, account lockouts, or "login from new device" notifications, it may indicate that attackers are testing stolen credentials against your systems.
What to look for:
- Spikes in failed login attempts on your VPN, email, or SaaS platforms
- Login attempts from unusual geographic locations
- Multiple employees reporting the same issue simultaneously
2. Employee Personal Account Takeovers
When an employee's personal accounts (social media, banking, shopping) are compromised, it often indicates their device was infected with info-stealer malware. If that same device was used for any work activity, your corporate credentials are likely exposed too.
What to look for:
- Employees mentioning personal account hacks
- Reports of unauthorized purchases or identity theft
- Password reset emails for non-work services on work devices
3. Highly Targeted Phishing with Internal Knowledge
If your organization is receiving phishing emails that reference specific internal details — project names, internal tools, org chart structure, or recent events — attackers may have already harvested credentials that gave them initial access to some internal information.
What to look for:
- Phishing emails mentioning internal project names or colleague names
- Emails that reference specific tools your organization uses (e.g., "Update your Jira/Confluence password")
- Social engineering attempts that demonstrate insider knowledge
4. Operating in a Heavily Targeted Industry
Certain industries are disproportionately targeted by info-stealer campaigns and credential theft operations:
- Financial services — banking credentials command premium prices on dark web markets
- Healthcare — HIPAA-protected data is valuable for fraud and extortion
- Technology & SaaS — source code repositories and CI/CD pipelines are high-value targets
- Government & Defense — credentials can facilitate espionage
- E-commerce — admin panel access enables fraud at scale
If you're in one of these industries and haven't checked for exposed credentials, the odds are not in your favor.
5. You've Never Checked
Perhaps the most significant risk factor is simply not knowing. If your organization has never scanned for credential exposures, you have zero visibility into whether your employees' passwords are already circulating on the dark web.
Consider that:
- Over 500 million new credentials appear in stealer logs every day
- The average organization has credentials in multiple breach databases
- Stealer logs capture credentials from personal devices that access corporate services
- Many exposures go undetected for months or years
What to Do Next
- Run a free scan — start with a free domain scan to assess your current exposure
- Review the results — understand the scale and recency of any detected exposures
- Take action — if exposures are found, follow our Breach Response Playbook
- Set up monitoring — Pro Guard provides continuous monitoring so you're alerted to new exposures immediately