PSIRT (Product Security Incident Response Team)

PSIRT (Product Security Incident Response Team) is a specialized organizational unit responsible for managing product security vulnerabilities and incidents. According to ISO/IEC 29147 and ISO/IEC 29204, PSIRTs must be able to receive, analyze, and respond to vulnerability reports efficiently. Under the EU Cyber Resilience Act (CRA) Article 14, manufacturers are legally obligated to report actively exploited vulnerabilities within 24 hours. This requirement makes PSIRT a critical compliance function rather than just a technical one. PSIRTs differ from standard IT security teams by focusing on the security of products sold to customers, rather than internal corporate IT assets. For companies exporting to the EU, a functional PSIRT is no longer optional—it is a prerequisite for market access. Effective PSIRTs must be integrated into the Product Lifecycle Management (PLM) process to ensure continuous monitoring, patch development, and customer notification capabilities.

PSIRT application follows a three-stage lifecycle: Detection, Response, and Remediation. In the Detection stage, companies implement VDP (Vulnerability Disclosure Programs) as outlined in ISO/IEC 29147, enabling ethical hackers and researchers to report flaws. The Response stage involves analyzing the severity using CVSS (Common Vulnerability Scoring System) and executing the EU CRA 24-hour notification protocol. The Remediation stage focuses on developing, testing, and deploying patches or mitigations. For example, a Taiwanese industrial IoT manufacturer implemented a PSIRT in 2024, reducing their Mean Time to Remediate (MTTR) from 15 days to 4 days. This improvement led to a 30% reduction in warranty-related costs and a significant increase in customer trust-based contracts. Quantifiable KPIs include: Vulnerability-to-Patch Time-to-Market (T2M), Percentage of Vulnerabilities Detected via External Sources, and Customer Notification Compliance Rate.

Taiwan enterprises typically face three challenges: Resource Constraints, Cross-functional Silos, and Regulatory Lag. Many SMEs lack the budget for a full-time PSIRT, which can be addressed by adopting a 'hybrid model'—outsourcing initial triage while keeping decision-making in-house. Cross-functional Silos occur when R&D, Legal, and Customer Support do not communicate effectively; this is solved by establishing a PSIRT Charter signed by the CEO. Regulatory Lag refers to the gap between emerging laws like the EU CRA and existing domestic standards. To overcome this, companies should adopt the NIST Secure Software Development Framework (SSDF) as a baseline, which aligns with both EU and US standards. A phased approach—starting with a 90-day foundation-building phase, followed by a 6-month operationalization phase—is recommended for most Taiwan-based manufacturers.

Winners Consulting Services Co., Ltd. specializes in PSIRT for Taiwan enterprises, delivering compliant management systems within 90 days. Free consultation: https://winners.com.tw/contact