Optimizing DLP Programs: Why Traditional DLP Fails in the GenAI Era

Key Insights

• Two-pronged DLP. A core platform in the NGFW, plus a dedicated suite for GenAI-specific risks.
• Broad out-of-the-box coverage. 700+ predefined data types with real-time breach remediation.
• Built for GenAI. AI-powered classification and semantic detection catch sensitive data inside prompts and unstructured model outputs.
• Visibility plus control. Risk-based assessment of GenAI usage, with runtime monitoring that blocks risky behavior live.
• Compliance-ready. Unified audit trails and red teaming support compliance proof and proactive risk remediation.

Traditional Data Loss Prevention Risks

A data loss prevention program is a coordinated set of policies, processes, and technologies designed to protect sensitive information across an organization. The goal of data loss prevention programs is to identify and classify sensitive business data, then implement security controls and practices to prevent the unauthorized access, exposure, misuse, or exfiltration of this information.

Sensitive business data could include information subject to compliance requirements or anything that might harm the company if the wrong people had access to it. Examples include:

• Intellectual property (IP)
• Personally Identifiable Information (PII) for customers and users
• Financial information
• Log in credentials and secrets
• Employee data
• Legal and regulatory data

There are many ways, both accidental and malicious, in which sensitive business data can be “lost.” Traditionally, the most common DLP risks are:

• Accidental Sharing: Examples include emails sent to the wrong recipient, attaching the wrong files, using overly broad permissions, or sending information via unsecured channels.
• Insider Threats: Employees or contractors with access to sensitive information intentionally or unintentionally exfiltrate data.
• Phishing and Social Engineering: Users tricked into revealing their credentials or sharing sensitive information.
• Malware and Ransomware: Malicious software designed to steal or encrypt business data.
• Lost or Stolen Devices: Laptops, mobile devices, or removable media containing unencrypted data.
• Misconfigured Systems: Improper security settings that weaken defenses, enabling unauthorized access and exposing data.
• Third-Party Vendor Breaches: Data compromised through suppliers or partners with weaker security controls.

Any of these DLP risks can lead to major data breaches with significant consequences for businesses, including reputational harm, compliance issues, IP loss, and substantial financial losses. However, while these data loss scenarios can cause considerable damage, they are generally well-understood risks that traditional DLP solutions and programs can address. In contrast, the introduction of generative AI presents a range of new security risks that DLP programs are still struggling to adapt to.

GenAI Data Loss Prevention Risks

In the rush to adopt generative AI tools and gain a competitive advantage, organizations are handing over their most sensitive data without proper DLP controls in place. These tools ingest and transform data to generate content at scale. This creates entirely new risks for data exposure that traditional DLP programs fail to detect or mitigate.

GenAI data security threats include:

• Prompt-Based Data Exposure: Employees entering sensitive business data into GenAI prompts.
• Prompt Injection Attacks: Malicious prompts that manipulate AI systems into exposing sensitive information.
• Model Data Retention: Data stored and reused by GenAI providers beyond organizational control.
• Data Leakage: GenAI outputs revealing sensitive information, such as proprietary business data, API keys, or PII derived from confidential inputs.
• Shadow AI Use: Employees bypassing enterprise security controls and creating visibility gaps by utilizing unsanctioned GenAI applications.
• Broad Default Permissions: GenAI companies granting excessive permissions and broad access by default to make their models quick and easy to use.
• Unauthorized Actions: Causing the AI to perform actions it was not designed for, such as sending emails or manipulating files, especially important if the model has access to external systems.
• Third-Party Data Risks: Many GenAI tools rely on external vendors or APIs, introducing uncertainty around their security practices.

Exposing sensitive data in GenAI prompts is a major concern. Data from Check Point’s 2025 AI Security Report shows that 7.5% of all prompts provided to generative AI models included some form of sensitive information or private details. Additionally, 1 in every 80 GenAI prompts exposes sensitive information to attackers.

Why Traditional DLP Solutions Are No Longer the Answer

In order to protect sensitive business information, data loss prevention programs need to:

• Classify sensitive information based on its value to the company and compliance requirements.
• Develop policies for who has access and how data is handled, stored, and shared based on its classification.
• Have real-time visibility into the movement of this sensitive data.
• Scan business traffic effectively to detect and track sensitive information.
• Enforce granular security controls such as encryption, blocking unsafe actions, and automatically responding to potential data loss incidents.

A major reason traditional DLP fails in the GenAI era is that these models inherently transform and repurpose the data they are given. The patterns in the initial dataset are altered while still retaining information that organizations do not want exposed. This makes it difficult to accurately detect and track sensitive information as it moves across the network and is accessed by different users.

Traditional DLP detection methods are designed to flag fixed patterns (e.g., PII, financial data, etc.) in structured data. They struggle to track sensitive data across LLM-based transformations such as summarization, paraphrasing, and translation. This allows sensitive information to leak through simple-language outputs without triggering data loss prevention programs.

Other DLP challenges caused by GenAI tools include:

• Maintaining Comprehensive Visibility of GenAI Use: Tools such as ChatGPT, Claude, Perplexity, and others are regularly used by employees without following proper DLP procedures. They might copy and paste sensitive data into prompts, upload confidential files, or even use unsanctioned LLMs without the security team’s knowledge.
• Keeping Up with GenAI Updates: As a new and exciting technology, the pace at which GenAI tools are being introduced and updated creates a moving target for data loss prevention programs. Whether it is new features, data handling practices, or integrations with external systems, next-generation DLP tools need the flexibility to adapt policies as GenAI technology evolves.
• Entering Sensitive Data into Prompts: It is easy for employees to copy sensitive business data into prompts without fully considering the DLP risk. GenAI works better the more context you provide. Therefore, employees might include customer records, source code, financial details, or internal documents simply to get better or faster results. However, once entered, this data could be logged and retained outside your control, leading to serious data security breaches that traditional DLP solutions struggle to detect in real time.
• Restricting Employees to Approved GenAI Tools: Many organizations aim to manage GenAI risk by limiting employees to approved tools that adhere to stricter data-handling practices. Unfortunately, this is difficult to enforce in practice, and employees may bypass strict DLP controls in search of the quickest, easiest way to integrate GenAI tools into their workflows.

Next-Generation DLP Solution for the GenAI Era

To adapt to these new data security risks, organizations need to optimize their DLP programs for the GenAI era. This includes a new, in-depth understanding of data at a language level rather than relying on traditional DLP detection methods. Given that generative AI models transform and repurpose data, DLP programs now also need to incorporate Natural Language Processing (NLP) and other AI technologies to analyze LLM outputs. By understanding the semantics of AI outputs, DLP solutions can still track and identify sensitive information, even if it has been altered.

In the past, data loss prevention solutions could match predefined patterns from an inventory of sensitive business information with network traffic to track its movement and enforce security policies. However, as AI models alter these patterns while often retaining confidential information, solutions now need a deeper understanding of the network traffic to maintain DLP visibility. For example, identifying PII in paraphrased or summarized documents or translations that reveal confidential business records.

Other GenAI capabilities to look for in next-generation DLP programs include:

• Adaptive, Risk-Based Policy Enforcement: Replacing static DLP rules with an adaptive approach that incorporates contextual information, the latest threat intelligence, and information of model updates.
• Comprehensive GenAI Discovery and Classification: Continuously monitors user activity to identify and categorize all GenAI tools in use across the organization and the data shared with them.
• Regular Audits of GenAI Tools: Monitor any changes among GenAI providers with a focus on how they handle and retain any data provided.
• Real-Time Prompt and Context Inspection: Analyze GenAI prompts and responses in real time to detect sensitive data, even if obscured by language changes. Actions can include blocking or sanitizing risky prompts.
• Behavioral Analytics and Anomaly Detection: Identify unusual patterns indicative of potential GenAI data leaks, such as excessive prompting, large data uploads, or regular tool switching.
• Training Employees to Understand AI DLP Risks: Educate staff on safely using GenAI tools, including what data can be shared with models.

• Robust Authentication Processes: Tie GenAI usage to user identity, device posture, and privilege level to ensure only approved users who are trained on the DLP risks can access these tools.

Prevent Data Loss with Check Point

Check Point offers multiple DLP solutions based on advanced data detection technologies to accurately identify and classify sensitive information, track its use across the organization, and minimize the risk posed by GenAI tools. Check Point’s main DLP platform is embedded in the Next-Generation Firewall (NGFW) with over 700 predefined data types and real-time remediation controls to report and respond to policy breaches.

Beyond NGFW, Check Point also offers dedicated GenAI DLP capabilities, including:

• Groundbreaking AI-powered data classification and semantic detection to identify sensitive information, even within conversational prompt data and unstructured model outputs.
• Visibility into GenAI utilization across your organization, along with risk-based assessments of each use case.
• Runtime monitoring and application protection to block risky behavior and mitigate DLP threats.
• Unified audit trails to monitor user activity, identify suspicious behavior, and help prove compliance.
• Red teaming to assess security risks and remediate potential vulnerabilities.

Get in touch with a Check Point expert today and see our DLP capabilities in action by scheduling a demonstration of the NGFW or the new suite of GenAI protection tools.