How to Protect Digital Trade Secrets with Classification Labels
Trade secrets need protection. With paper documents, the basic controls are familiar: they can be stored securely and physical access can be restricted. Digital documents are more difficult to manage. There are more of them, they are easier to copy, move and edit, and their status can change quickly. Yet companies still need to know where sensitive information is stored, who can access it and what happens to it.
This article explains why protecting trade secrets in digital form is a more complex task and how a DCAP solution such as SearchInform FileAuditor can help organizations classify, control and protect sensitive files.
How trade secrets are protected
There is no single global trade secret law, and specific legal requirements depend on jurisdiction. However, international trade secret principles generally follow a similar approach: information may qualify for protection when it is not generally known or readily accessible, has commercial value because it is secret, and the lawful holder has taken reasonable steps to keep it secret.
These principles are reflected, for example, in Article 39 of the WTO TRIPS Agreement. In practice, this means organizations should be able to identify which information they consider confidential, restrict access to it and demonstrate that appropriate measures are in place to preserve its secrecy. For digital information, this typically requires several organizational and technical controls:
- Define what information the organization treats as a trade secret and establish internal rules for handling it.
- Identify which employees or roles are authorized to access that information.
- Clearly classify and label sensitive documents so users understand their confidentiality status.
- Restrict access and monitor whether established handling rules are being followed.
These controls are relatively straightforward for paper records, but digital documents create additional challenges:
- Trade secret information may be spread across dozens or hundreds of files on employee devices, file servers and cloud storage.
- Standard document labels can often be removed or changed by users.
- Digital files can be copied quickly, creating additional versions that may escape existing controls.
- Access settings may differ across repositories, making it difficult to maintain consistent protection.
These problems can be addressed with data-centric audit and protection tools such as DCAP systems. Below, we look at how this works using SearchInform FileAuditor as an example.
How SearchInform FileAuditor works with trade secrets
SearchInform FileAuditor scans corporate file repositories, identifies where files are stored and classifies documents according to their content using built-in criteria or rules configured by administrators. It can then apply labels to files, including clear visual confidentiality markings, and use those labels as a basis for access restrictions, action blocking and activity monitoring.
Trade secrets, however, require a slightly different approach.
A trade secret is usually not defined simply by file format, topic or content. A financial report, for example, may be prepared for internal discussion today, approved as confidential by management tomorrow and later published as part of public reporting. Its confidentiality status can therefore change over time.
That is why human judgment remains important. Document owners or other authorized employees need a simple way to indicate that a particular file should be treated as a trade secret.
With SearchInform FileAuditor, graphical classification labels can be integrated into the document editing workflow. An authorized employee can select the required confidentiality level, for example “Trade Secret”, directly from the interface. The system then adds visible markings such as headers, footers or watermarks, as well as a label on the file icon.
The classification information is also stored in file metadata and alternative data streams, helping protect the label from accidental removal. If content from a labeled file is copied into an unclassified document, FileAuditor can identify the duplicate content and apply the corresponding classification automatically.
Organizations can configure how labels appear, what text is displayed and who is allowed to assign or remove them. For users authorized to change a classification, the system can also require a reason for the change. This creates an additional control layer and helps track why a document lost or changed its confidential status.
How label-based protection works
A label alone does not protect a file, but it provides the classification context needed to apply consistent controls. Once documents are identified and marked, the organization can enforce appropriate protection measures.
SearchInform FileAuditor can:
- Restrict access to labeled files. Access can be limited to employees or roles authorized to work with trade secret information. Unauthorized users can be prevented from opening, editing or otherwise interacting with the file, regardless of where it is stored. FileAuditor records attempts to bypass these restrictions and logs actions performed by authorized users.
- Set rules for handling confidential files. Organizations can define which operations are permitted. For example, employees may be allowed to open a trade secret document in approved office applications while access through websites or unapproved third-party tools is blocked.
- Prevent trade secrets from leaving the protected environment together with DLP. SearchInform FileAuditor can work with SearchInform Risk Monitor to apply controls when a labeled file is sent by email or messenger, uploaded through a browser, or copied to USB drives and other removable media.
- Record actions involving classified files. The system can record who created a file, who assigned the label, who opened it, and who attempted to copy, modify or delete its content. These logs can support internal investigations and, where applicable, help establish a digital trail of relevant events.
- Maintain an archive and file change history. Critical files and their previous versions can be retained to reduce the risk of loss, unauthorized alteration or destruction.
Together, these capabilities help organizations translate internal trade secret rules into practical controls for digital information. They reduce the risk of unauthorized access and leakage, while also giving security teams the visibility needed to investigate suspicious activity if an incident occurs.
The Bottom Line
Whether a particular document should be treated as a trade secret often depends on business context, relevance and value at a specific point in time. Technology can support this process, but the decision itself usually remains with the people who understand the information and its business significance.
SearchInform FileAuditor helps organizations manage digital trade secrets at three levels:
- Identify and classify sensitive documents. The system can discover valuable content, while authorized employees can apply protected confidentiality labels to files.
- Restrict access and risky actions. Users without the required permissions can be prevented from opening classified documents, while approved users can be limited to safer ways of handling them.
- Monitor compliance with internal rules. Actions involving classified files are recorded, giving security teams the information needed for control and investigation.
Try SearchInform FileAuditor free for 30 days and see how classification, access control and file activity monitoring can strengthen the protection of digital trade secrets.
ABOUT SEARCHINFORM
SearchInform is an information security and risk management product vendor as well as an MSS provider. The company's clients are more than 4000 companies in 20+ countries. Today, the team has products and services for comprehensive protection against insider threats at all levels of corporate information systems: FileAuditor (the DCAP class solution); DLP system with extended functionality; Risk Monitor (advanced platform for internal threat mitigation); SIEM system, Information Security outsourcing service.
