Could Former Employees Still Be Accessing Your Company Data?

Article summary: Former employee access often survives offboarding through shared passwords, personal devices, email forwarding rules, and apps that sit outside your main login system. A written offboarding checklist that covers every account, device, and credential closes those gaps on the employee’s last day. 

An employee turns in their laptop and badge on Friday. By Monday, their Microsoft 365 account is disabled, and everyone moves on.

But they may still know the company’s social media password. Their phone could still have access to client files. And that scheduling app someone signed up for years ago? Their login may still work.

That’s how former employee access can survive an otherwise smooth exit. Closing those gaps takes a repeatable offboarding process, not just disabling one account.

How Common Is Former Employee Access?

More common than many businesses realize.

A Beyond Identity survey found that 83% of respondents still had access to digital assets from a previous employer. More than a third could still access an old company email account or had work materials stored on a personal device.

Lingering access can also extend to cloud applications. Research reported by Security Magazine found that 31% of companies had former employees who accessed assets stored in SaaS applications after leaving.

Whether that access is used intentionally or simply forgotten, it creates unnecessary risk. An old account, shared password, or company file left on a personal device can become a security problem long after an employee is gone.

The Access Paths Offboarding Checklist Misses

Disabling an employee’s main account is an important first step. We’ve covered how app connections and mobile sessions can outlive a disabled account. But other access can be easier to overlook.

Shared Passwords Nobody Changed

Small businesses often rely on shared credentials for social media accounts, vendor portals, Wi-Fi networks, alarm systems, and other services.

In a PasswordManager.com survey reported by HCA Magazine, 47% of respondents said they had accessed a former employer’s account after leaving. The most common reason they could still get in was that the password had never been changed.

Apps Outside Your Main Login

Not every business app is tied to Microsoft 365 or Google Workspace. Scheduling platforms, design tools, vendor portals, and other services may have separate accounts.

Disabling someone’s primary work account may not remove access to these tools. That’s why offboarding should include an inventory of every application the employee used.

Employees who access company email or files from personal devices may still have business data stored there after they leave.

Personal Phones and Laptops

Microsoft’s offboarding guidance recommends removing company data from devices as part of the process. Device management tools can help IT remove organizational data from managed devices without necessarily erasing personal information.

Email Forwarding Rules

A departed employee’s mailbox may remain available so someone else can monitor incoming messages. Before that happens, check for forwarding settings and inbox rules that could send company email to an outside address.

Otherwise, sensitive messages could continue leaving the organization even after the employee’s access is disabled.

Why Timing Matters

Offboarding that happens “sometime next week” leaves unnecessary time for old access to remain active.

Microsoft notes that blocking a user’s Microsoft 365 sign-in can take up to 24 hours. When access needs to end quickly, its guidance also calls for resetting the employee’s password and signing them out of active sessions.

CISA recommends having a defined process that removes employee access by the day they leave. That means HR and IT need to coordinate so account shutdowns happen at the right time, not days later.

It also helps to assign one person responsibility for the offboarding process. That makes it less likely that an old account, shared password, or forgotten application will slip through the cracks.

Build an Offboarding Checklist That Actually Works

A consistent checklist makes offboarding easier and reduces the chance that an old account gets overlooked. Keep it simple enough to use every time someone leaves.

1. Maintain a list of the apps, portals, and shared accounts employees use.
2. Disable the employee’s main account, reset the password, and sign out active sessions.
3. Change shared passwords the employee knew or used.
4. Remove company access and data from personal devices and collect company-owned equipment.
5. Review email forwarding rules and transfer ownership of important files.
6. Confirm each step is complete and document the date.

That first step matters. You can’t remove access to an account you don’t know exists.

Stronger authentication provides another layer of protection. Moving beyond simple passwords makes an old or exposed password much less useful on its own.

Are You Sure Every Door Is Closed?

Former employee access often comes down to small gaps: a shared password that never changed, an overlooked app, or company data left on a personal device.

Unbound Digital can help you identify those gaps and build a consistent offboarding process that closes access when employees leave.

Contact us today to schedule a free consultation. Call 423-467-7777 or reach us online.

Article FAQs

Can a former employee still access company data after leaving?

Yes. Access can remain through shared passwords, separate app accounts, personal devices, or overlooked cloud services. Disabling the employee’s main account may not close every path.

What should be on an employee offboarding checklist?

Include every app, account, device, and shared login the employee used. Disable their accounts, change shared passwords, collect company equipment, remove company data from personal devices, and check email forwarding rules.

How quickly should former employee access be removed?

Access should be removed no later than the employee’s departure. HR and IT should coordinate the timing, so accounts, applications, and other access are disabled as soon as they are no longer needed.