How to Choose a DLP Solution:
8 Things to Consider Before Implementation
A DLP (Data Loss Prevention) system helps organizations identify, monitor and protect sensitive information such as personal data, financial records, intellectual property and confidential business documents. It monitors how sensitive data is used and transferred across corporate channels, detects and prevents prohibited and risky transfers, data leaks and misuse.
However, DLP solutions vary significantly in their capabilities, channel coverage and technical requirements. Choosing the right DLP software therefore involves more than comparing feature lists.
The following eight criteria provide a practical DLP evaluation guideline for choosing a solution before purchase and deployment.
What Should You Check When Choosing a DLP Solution?
When evaluating DLP software, consider eight areas:
- Data protection requirements and business objectives
- Vendor’s reliability
- Detection, monitoring and blocking capabilities
- Preconfigured and customizable security policies
- Analytical and insider threat detection capabilities
- Performance, scalability and infrastructure requirements
- Technical support
- DLP as a Managed Service
Let’s look at each of these DLP evaluation criteria in more detail.
1. Data protection requirements and business objectives
Before choosing a DLP solution, define what data you need to protect and which business risks the system should address.
Will DLP system primarily be used to prevent leaks of personal data, financial records and other sensitive information? Or should it also help identify broader insider risks such as data theft, corporate fraud or work for competitors?
Prepare a requirements matrix before testing the solution. While the list will differ for each organization, typical criteria may include:
- Types of sensitive data that need protection
- Communication and data transfer channels that need monitoring
- Regulatory requirements to comply with
- Number of users and endpoints
- Corporate fraud and insider risk prevention capabilities
These criteria can then be used during a DLP trial or proof of concept to evaluate how well the solution meets your actual needs.
2. Vendor’s Reliability
Before testing DLP software, assess the reliability and experience of the vendor behind it.
A DLP system is a complex security platform that requires continuous development, regular updates, technical support and adaptation to new communication channels, applications and data security risks.
Check how long the vendor has been operating in the information security market and how actively it develops and invests in its DLP product.
Pay particular attention to:
- Update frequency
- Support for new data transfer channels and applications
- Technical and implementation expertise
- Local presence and support capabilities
A DLP system is a long-term investment, so it is important to understand whether the vendor will continue to develop and support the solution after deployment.
3. Detection, monitoring and blocking capabilities
A DLP solution should be tested under conditions close to the planned production environment.
If a vendor does not provide the opportunity to test the system before purchase, this should be considered carefully.
A trial or proof of concept helps verify how the system performs with your actual workloads, data volumes, communication channels and security scenarios.
Testing should also be representative in scale: results from a small number of endpoints may differ significantly from a full deployment. Do not rely solely on specifications or marketing materials; test the capabilities that matter to your organization directly.
- Channel coverage: email, web browser, instant messaging platforms, cloud storages, printers, USB devices, RATs, and Microsoft 365.
- Blockings: the system should analyze both content (type and level of confidentiality of information) and context (attributes and properties).
- Detection methods: regular expressions, dictionaries, digital fingerprints, morphology, similar-content search, complex search queries and combined rules.
- Security policies: policies should work across different channels and data formats, including files, messages, raw text, images and other content.
4. Preconfigured and customizable security policies
Experienced DLP vendors build expertise through deployments across different industries and are familiar with a wide range of security scenarios. This knowledge is often reflected in ready-made policies that customers can use from the start of deployment.
A broad library of preconfigured policies can simplify implementation, reduce manual configuration, and help security teams achieve the first results faster. Without such presets, organizations may need to spend significant time creating policies from scratch and rely more heavily on specialist expertise.
At the same time, preconfigured policies should not limit flexibility. A DLP solution should allow security teams to modify existing policies and create custom rules that reflect the organization’s specific risks, data types and business processes.
The strongest DLP policy framework combines ready-made expertise with the flexibility to adapt protection to real operational needs.
5. Analytical and insider threat detection capabilities
During evaluation, consider whether the DLP solution provides additional analytical and business efficiency capabilities. These may include e-forensics, watermarking, UEBA, hardware and software auditing, and employee activity analysis.
Such capabilities extend DLP beyond data leak prevention. They help security teams investigate suspicious behavior, detect corporate fraud (incl. sabotage, kickback schemes, work for competitors), identify other insider threats, and gain deeper visibility into employee activity and business processes.
As a result, an advanced DLP platform can support not only internal security, but also broader business efficiency and informed management decisions.
6. Performance, scalability and infrastructure requirements
Server and storage requirements can vary significantly between DLP products, affecting both performance and total cost of ownership. When evaluating a solution, consider how much infrastructure it requires at your planned deployment scale, including server capacity, storage, network traffic, number of endpoints and performance under high workloads.
Storage optimization is especially important because DLP systems process and retain large volumes of data. Technologies such as deduplication, media compression, flexible analysis exceptions and endpoint-side processing can reduce storage consumption, network traffic and server load.
For example, SearchInform uses these approaches together with Streaming OCR and file labeling to avoid repeated analysis of unchanged content. Following architectural optimization, the performance of its DLP system increased by 30%.
Efficient resource use is important not only for reducing infrastructure costs. Poor DLP optimization can also slow down data processing and affect system responsiveness during periods of high activity.
7. Technical support
DLP systems often require ongoing configuration, technical assistance and policy adjustments after deployment. When choosing a vendor, pay particular attention to direct access to technical specialists, response times, and the availability of local-language support and representative offices in place.
8. DLP as a Managed Service
DLP platforms require specialized expertise to configure, monitor and maintain effectively. At the same time, experienced information security specialists can be difficult and costly to recruit, especially for small and medium-sized businesses.
In these organizations, DLP management is often assigned to existing IT staff who may lack the necessary security expertise or time for continuous monitoring. Managed DLP services provide an alternative by shifting these tasks to the vendor’s information security specialists.
Depending on the service model, they can configure the DLP system, create and optimize security policies, monitor events, analyze incidents, identify suspicious activity and provide regular security reports. SearchInform Managed Security Services can also reduce the need for separate investments in software, infrastructure and full-time security personnel through a subscription-based model.
This approach can lower the entry barrier for organizations that need DLP protection but do not have the resources to maintain a dedicated in-house security team.
The Bottom Line
A DLP system is a key component of modern enterprise information security. Its role now extends beyond preventing data leaks to detecting insider risks and providing greater visibility into business processes.
Solutions such as SearchInform Risk Monitor bring these capabilities together in one platform, helping organizations protect sensitive data, mitigate internal security risks and ensure their DLP investment delivers measurable business value.
The right choice starts with clearly defined priorities, careful evaluation against real business requirements and practical testing before full-scale deployment.
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.
