<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  Explain the role of penetration testing in cybersecurity. Context: Penetration testing plays a critical role in cybersecurity by simulating cyberattacks to uncover vulnerabilities, enabling organizations to enhance their security defenses. Answer: [/INST]It involves simulating cyberattacks to identify vulnerabilities in a system or network, allowing organizations to strengthen their security measures.</s>