When Employees Leak Data – Risks From the Inside

Cybersecurity often focuses on external threats, but insider leaks, whether intentional or accidental, are a serious and growing concern. According to SpyCloud’s 2025 Insider Threat Pulse Report, 56% of organizations experienced an insider threat incident in the past year, and both negligent and malicious actors pose equal risks.SC Media+2Autobody News+2SpyCloud
By exploring real-world examples like Intel’s accidental leak, Meta’s deliberate disclosures, and the DOGE API key incident, we can draw powerful lessons to help your business strengthen its defenses from the inside out.
Case Study #1: Intel—Design Flaws Expose Employee Data
A security researcher discovered vulnerabilities in Intel’s internal systems that allowed access to nearly 1 GB of data covering 270,000 employees, including names, roles, addresses, and phone numbers. These flaws stemmed from weak login validation in a business card portal, hardcoded credentials, and bypassable supplier portals.TechRadarTechRadar
Though Intel patched these issues by February 2025, the incident underscores how even internal systems can be catastrophic if poorly designed.TechRadar
Case Study #2: Meta—Intentional Leaks and Organizational Culture
In early 2025, Meta fired approximately 20 employees after investigations found they leaked confidential information, such as unannounced product plans and internal meeting details, to the media. The company reinforced that all employees are reminded regularly of confidentiality policies and that deliberate leaks carry serious consequences.The Verge
This highlights how organizational culture and internal messaging play key roles in preventing insider leaks.
Case Study #3: DOGE—Accidental Leak of a Government API Key
In mid-July 2025, an employee at the Department of Government Efficiency (DOGE) accidentally uploaded a private xAI API key to GitHub, granting access to 52 large language models including the latest “grok 4-0709.”SpyCloud+7TechRadar+7mysanantonio.com+7
Though the repository was removed, the still-active key posed ongoing access risks. Analysts warned this was symptomatic of broader negligence and a broken security culture.TechRadar+2brightdefense.com+2
Why Insider Leaks Matter for Your Business
Whether through oversight, laziness, or malice, employee-driven leaks can cause immense damage:
| Risk Area | Why It Matters |
|---|---|
| Identity Theft | Exposed personal info can lead to fraud or unauthorized impersonation. |
| Credential Misuse | Leaked keys or credentials, like API tokens, can give attackers prolonged access. |
| Loss of Trust | Employees and customers lose confidence in organizations that mishandle their data. |
| Legal Exposure | Breaches may trigger compliance violations (GDPR, HIPAA, etc.) and costly penalties. |
Mitigation Strategies
- Security Awareness Training
Regularly educate staff on phishing, credential safety, and data handling protocols. - Least-Privilege Access & IAM
Enforce least-privilege access and require Multi-Factor Authentication (MFA) for critical systems. - Data Loss Prevention (DLP) Tools
Monitor for unauthorized data flows or exposed credentials in internal systems and public repositories. - Secure Development Practices
Treat credentials like API keys as high-value assets. Apply secrets scanning to prevent accidental leaks in code. - Clear Offboarding Processes
Immediately revoke system and data access upon employee departure to prevent misuse. - Internal Reporting Culture
Encourage reporting of potential leaks without fear of reprisal. A transparent environment helps catch issues earlier.
How Fortis Cyber Solutions Supports Insider Risk Mitigation
Fortis shields businesses from internal threats through:
- Employee Risk Education
Interactive, scenario-driven training that reinforces proactive behavior. - DLP & Endpoint Monitoring
Real-time detection of unusual data transfers or insider misuse. - Secrets Management Solutions
Automated protection of token storage, API keys, and sensitive application secrets. - Incident Response Planning
Simulations and tabletop exercises tailored for insider scenarios.
Fortis Cyber Solutions can help you build that culture of security and resilience from the inside out. Contact us today to speak with an expert.



