When defending a client accused of illegally obtaining confidential data, consider the following angles to prove that the client’s actions were intended to test the company’s protection of sensitive information: 1. **Client’s intent**: Emphasize that the client’s intentions were not malicious, but rather that the client wanted to assess the company’s data protection vulnerabilities through its own testing. This should include evidence or background information showing whether the client has participated in similar security assessments or improvement processes in the past. 2. **Past record**: If the client has relevant professional background or has participated in legitimate information security testing projects, demonstrate their reputation and professional ethics in this field to show that the behavior was constructive. 3. **Lack of intent to harm**: Explain that the client did not use or disseminate the data inappropriately after obtaining it, and did not seek any personal benefits from it. 4. **Prior communication and authorization**: If there is any indication that the action was verbally agreed or acquiesced by someone within the company, this will be a very important defense point. If there was no formal authorization, try to explain how misunderstandings or miscommunication led to the incident. 5. **Reveal potential vulnerabilities**: Provide evidence that the incident helped the company discover previously unknown security vulnerabilities. If possible, emphasize that the client has tried to report these issues through other channels but did not receive an appropriate response. 6. **Cooperative attitude**: After the incident was discovered, whether the client showed a cooperative attitude and assisted the company in remedying the loopholes will help to show that its behavior was not malicious. It should be noted that the above defense strategy must be based on real evidence and facts, otherwise it may face legal and ethical risks. It is best to have professional legal advisors provide specific guidance and operations.