Testing DLP Solutions: Reasons and Step-by-Step Guide

SearchInform Malaysia’s Francis Yeoh shares a 10-step guide to testing DLP solutions before buying, as Malaysian firms face rising fines and breach costs (RM1M BNM fine, RM3.2M average breach cost in 2026).

Malaysian companies are facing growing financial and regulatory pressure over failures to protect sensitive information. In January 2026, Bank Negara Malaysia fined Bank Kerjasama Rakyat Malaysia RM1 million after a cybersecurity incident. An external threat actor gained unauthorised access to the bank’s IT infrastructure. Later, it was discovered that inadequate controls and incident response measures contributed to breaches of regulatory requirements.

Enforcement is not limited to isolated cases. The central bank’s 2025 annual report records 284 supervisory and enforcement actions and RM15.9 million in penalties. The cost of a breach is also rising. PIKOM’s 2026 Cyber Resilience report projects the average cost of a data breach in Malaysia at RM3.2 million this year.

For businesses, the risk is therefore twofold: a security incident can lead to direct financial losses as well as regulatory penalties. A Data Loss Prevention (DLP) system can identify and block unauthorized data transfers while maintaining logs that support investigation, accountability and compliance. By providing visibility and control over sensitive information, it helps organisations prevent security incidents that may otherwise result in regulatory scrutiny and financial losses. 

Francis Yeoh, Country Director, SearchInform Malaysia, explains how to choose a DLP system that matches your business needs to facilitate data governance.

A 10-Step Guide to Testing a DLP Solution

Product specifications and vendor demonstrations cannot show how a DLP system will perform with the company’s data, workflows and IT environment. Pre-purchase testing allows security teams to validate detection accuracy, enforcement capabilities and compatibility with existing infrastructure. It also helps identify limitations before the organisation commits to a product, reducing the risk of investing in a solution that fails to deliver the required level of protection.

The following 10 steps can help organisations conduct a structured DLP evaluation:

Define Clear Proof of Concept (POC) Terms. A reliable vendor should make the full functionality of the solution available for the trial. Restrictions on the number of devices, features or testing capabilities can prevent an organisation from properly assessing how the product will perform in its actual environment and may conceal limitations that become apparent only after deployment.

Compare Multiple Systems. Test several DLP solutions rather than evaluating a single product in isolation. Side-by-side testing provides a more objective view of each system’s strengths and weaknesses and helps avoid conclusions based primarily on vendor claims or demonstrations.

Assess Deployment Efficiency. The implementation process should be smooth and cause minimal disruption to business operations. Prioritise solutions that can be deployed within hours or a few days rather than weeks, require limited IT intervention and are compatible with the existing infrastructure.

Test Scalability and Performance. During the POC, simulate peak workloads across all relevant communication channels. A solution that performs well in a small test environment may struggle at scale. Recreate conditions as close to real-world usage as possible to assess how the system performs under pressure.

Evaluate Data Capture Capabilities. Not all DLP solutions are equally effective at capturing data, and gaps in monitoring can cause critical information to be missed. Check whether the system consistently records complete data streams without gaps. Also assess the granularity of reports to ensure they provide sufficient detail for incident investigation and forensic analysis.

Assess Search and Analysis Usability. The effectiveness of search and analytical tools directly affects the practical value of a DLP system. For organisations without a dedicated security team in particular, an intuitive interface is essential for conducting investigations and analysing incidents quickly and accurately.

Ensure Agent Protection and Stealth. For endpoint-based DLP solutions, the reliability and invisibility of the agent are critical. Verify that employees cannot disable it, either accidentally or intentionally, and that it is adequately protected against unauthorised tampering.

Run Comprehensive Testing for at Least Two Weeks. A meaningful evaluation requires sufficient time. Conduct testing for at least two weeks, although a month is preferable. Maintain regular contact with technical support throughout the testing period and assess both the system’s functionality and the vendor’s responsiveness. Poor support can undermine the effectiveness of even a technically strong solution.

Consult the Vendor’s Existing Customers. Contact the vendor’s reference customers to understand their first-hand experience with the product. Ask for direct feedback on system stability, usability and any challenges encountered in real-world deployment to gain a more complete picture of the solution’s performance.

Gather Feedback From Your Team. Involve the people who will manage the system on a daily basis. Their feedback is essential when selecting a solution that fits the organisation’s actual workflows, operational requirements and technical environment.

Turning POC Results Into a Decision

Once testing is complete, compare all solutions against the same predefined criteria. Record measurable results such as detection accuracy, false-positive volume, deployment time, endpoint resource consumption, blocking performance, and the completeness of audit logs. 

Conclusion

As enforcement becomes more active and the financial consequences of data breaches increase, organisations have less room for security controls that exist only on paper. The important question is not only whether a DLP product has the required features, but whether those controls hold up under the conditions in which the organisation actually operates.

A structured POC provides that evidence before a long-term commitment is made. It gives security and IT teams a basis for rejecting DLP solutions that create blind spots, excessive operational overhead, or weak audit trails. 

This press release has also been published on VRITIMES