A firm has instructed employees working with sensitive client data to use only company-provided systems. Evaluate the assumptions: 1. Personal systems may not meet required security standards. 2. All

A firm has instructed employees working with sensitive client data to use only company-provided systems. Let's evaluate the assumptions:

• Assumption 1: Personal systems may not meet required security standards. The firm's instruction to use only company-provided systems for sensitive data implies a concern about the security of personal systems. If personal systems were guaranteed to meet all necessary security standards, there would be no compelling security reason for this instruction. Therefore, this assumption is necessary for the firm's decision to be a logical measure to protect sensitive data.

• Assumption 2: All employees using personal systems have previously leaked data. The instruction is a preventative measure aimed at safeguarding sensitive data. It does not necessarily assume that all employees using personal systems have already leaked data. The firm might be implementing this policy to prevent potential future leaks due to security vulnerabilities (as per Assumption 1), rather than as a direct response to past leaks by every employee. Even if no employee has ever leaked data, the instruction would still be valid if personal systems pose a security risk. Therefore, this assumption is not necessary.

Based on this analysis, only Assumption 1 is necessary for the firm's instruction.

The correct option is A.

$\boxed{\text{A. Only 1}}$