In a cybersecurity incident response scenario, a company has detected unusual outbound traffic from a server that is not typically used for external communications. The security team suspects that this server may have been compromised and is exfiltrating sensitive data. To assess the situation, the team decides to analyze the server\'s network traffic logs. They find that the server has sent 150 MB of data to an external IP address over a period of 30 minutes. If the average size of the files being sent is 5 MB, how many files were likely exfiltrated during this time? Additionally, what critical thinking steps should the team take to determine the nature of the data being exfiltrated and the potential impact on the organization?