PT Application Firewall

Positive Technologies Adds LLM Firewall Module to PT Application Firewall for AI Service Protection

Positive Technologies has developed the LLM Firewall module as part of its PT Application Firewall solution to secure AI services against prompt injection attacks and data leakage. The module inspects both user requests sent to large language models and the responses generated by those models, detecting attempts to bypass restrictions, extract system instructions, or misuse agent capabilities. It specifically targets prompt injections hidden in documents or direct inputs that could override the model's original instructions. Additional detection covers personal data, passwords, access keys, and toxic or prohibited content in both directions of communication. The solution integrates via OpenAI-compatible APIs and is already available in PT AF Cloud, with deployment in PT AF PRO planned for later. Organizations can configure separate policies for different AI services, choosing between monitoring and blocking modes for requests and responses independently.

Positive Technologies Discontinues Active Development of PT AF 3, Shifts Focus to PT AF PRO and PT Cloud AF

Positive Technologies is halting active development of its PT Application Firewall 3 product and redirecting resources toward PT AF PRO and the cloud-based PT Cloud AF. Existing customers of the legacy WAF will continue to receive technical support, though no significant new capabilities are expected. The company cites the dramatic expansion of modern web infrastructure, which now spans hundreds of applications, APIs, and microservices across data centers, clouds, branches, and subsidiaries. Positive Technologies notes that exploitation of internet-facing web application vulnerabilities remains the leading initial access vector, accounting for 36 percent of successful corporate network intrusions. PT AF PRO, developed from the ground up over more than six years, is positioned as the new flagship solution for large-scale, distributed environments. The cloud offering PT Cloud AF provides a hardware-free alternative that organizations can manage themselves or fully outsource to partners. Client adoption of PT AF PRO has doubled over the past year.