Step 1: Identify the conclusion of the passage.
The company concludes that enhancing security features will help restore user trust, maintain customer loyalty, and prevent unauthorized access to sensitive information.
Step 2: Understand what a “must be true” question requires.
A must-be-true statement is an assumption that is essential for the conclusion to logically follow from the given information.
Step 3: Evaluate the options.
Option (A) is necessary because the conclusions depend on the assumption that the enhanced security features actually address concerns about data breaches.
Option (B) is too extreme, as eliminating all risk is not required or realistic.
Option (C) assumes automatic restoration of trust, which is not guaranteed or necessary.
Option (D) contradicts the passage’s implication that the update affects trust and reputation.
Option (E) introduces operating costs, which are irrelevant to the conclusion.
Step 4: Core requirement for the conclusion.
For the company's reasoning to hold, the enhanced security features must indeed be designed to address data breach concerns.
Final Answer:
\[
\boxed{\text{Option (A)}}
\]