Don’t Let Data Walk Out the Front Door: 7 Security Measures for Preventing Data Loss When Employees Leave

69% of organizations have experienced data loss due to employee movements (departures, role changes, relocations), and 50% of employees who left their jobs in the last 12 months kept confidential corporate data.

Here are seven security measures that can help prevent data from walking out the front door:

Security Measure #1: Limit Access to Data

While stricter access controls may inconvenience employees, limiting access to data repositories makes it easier to track and manage data—especially during legal proceedings.

• Understand who has access to what: Implement policies to track employee data access and create alerts for suspicious activity.
• Consider VPN policies: Restrict access to sensitive repositories when employees work remotely, reducing the risk of data being transferred to personal devices.
• Consult IT and end users: Before restricting access, evaluate the tradeoffs between security and efficiency with key stakeholders.

Security Measure #2: Evaluate Over-Archiving Policies

Organizations generate too much data to archive everything, making it essential to evaluate and refine archiving strategies.

• Identify critical data: Determine regulatory requirements, retention policies, and available technology before enforcing archiving rules.
• Eliminate redundant data: De-duplicate files and retain only necessary versions to simplify data management.

Security Measure #3: Clearly Communicate Policies

Creating policies is only half the battle—employees must understand and follow them.

• Explain the “why”: Employees are less likely to mishandle data if they understand its importance and associated risks.
• Train third parties: Vendors, law firms, and other external partners must also understand and comply with your data policies.

Security Measure #4: Leverage Technology to Track Employee Status Changes

Manual tracking processes are error-prone. Automation improves accuracy and efficiency.

• HR system integration: Monitor employee changes (departures, transfers, promotions) and trigger appropriate data actions.
• Develop customized workflows: Automate tasks such as data collection, legal holds, and access changes.
• Maintain an audit trail: Ensure all actions are logged and time-stamped for accountability and legal defensibility.

Security Measure #5: Utilize Robust Employee Agreements

Clear, well-structured agreements help protect corporate data and define employee responsibilities.

• Account for state laws: Non-compete, non-solicitation, and nondisclosure agreements vary by jurisdiction—ensure compliance.
• Ensure understanding: Have employees review and sign data-related agreements separately, with HR confirming comprehension.

Security Measure #6: Implement Coordinated Security Measures

Balance usability with strong security across both physical and digital environments.

• Manage all data sources: Secure systems with passwords, access cards, and restrictions on external devices like USB drives.
• Use DLP software: Monitor and control data movement across cloud platforms (e.g., Office 365, Dropbox, Google Drive).

Security Measure #7: Conduct Exit Interviews

Exit interviews are a critical but often overlooked step in preventing data loss.

• Assess risk: Identify whether the employee poses a potential risk (e.g., joining a competitor or leaving under negative circumstances).
• Reinforce obligations: Remind departing employees of their legal responsibilities regarding company data.
• Don’t skip it: Exit interviews can guide decisions like monitoring activity or preserving data before wiping devices.

Conclusion

We all lose things—keys, phones, remotes—and sometimes there are consequences. But when it comes to corporate data, the stakes are far higher.

For legal teams, data loss can lead to serious financial, legal, and reputational damage. Following these best practices can go a long way toward keeping your organization’s data secure and protected.