Information misrepresentation is often considered an off-book fraud. Off-book fraud refers to deceptive activities that do not directly involve the organization's accounting systems but relate to the misrepresentation or manipulation of information outside of recorded transactions. This type of fraud might involve falsifying business records, misstating facts to stakeholders, or other forms of deceit not directly reflected in financial records.
Fraud examination and financial forensics literature, which often categorize information misrepresentation under off-book schemes.

Reporting functionally to the CEO can promote internal audit objectivity. This arrangement helps ensure that the Chief Audit Executive (CAE) has the necessary independence from the areas being audited and sufficient authority to carry out audit responsibilities effectively. While ideally, the CAE should report functionally to the board for maximum objectivity, reporting to the CEO is a common practice that supports operational independence from direct operational management, such as the CFO or COO.
IIA guidance on reporting lines and independence.

A business continuity plan (BCP) is a preventive control that aims to ensure the continuity of critical business functions and processes in the event of a disruption or disaster2. A BCP identifies the potential risks and impacts that could affect the organization, and outlines the strategies and actions to mitigate them and resume normal operations as soon as possible3. A BCP can help organizations to reduce the financial losses and reputational damages caused by business interruptions, and enhance their resilience and preparedness4.
References:
1: Business continuity: Managing disaster and disruption2 2: Preventive controls5 3: 25 Key Financial Controls for Small Businesses3 4: 5 Steps To Protect Your Business From Supply Chain Disruptions4

The most appropriate first step for the board to take when developing an effective system of governance is to identify key stakeholders and their expectations. Understanding stakeholders' expectations is fundamental to defining the governance framework that aligns with these needs and establishing the organization's strategic objectives and policies.
IIA guidance on effective governance frameworks.

The best way for an internal auditor to demonstrate due professional care is to conduct an audit to the same extent that another prudent auditor would under similar circumstances. This involves applying the knowledge, skills, and judgment expected of an auditor in comparable roles or situations, ensuring thoroughness and appropriateness in the conduct of the audit work, and adhering to professional standards and ethical guidelines.
The IIA's International Standards for the Professional Practice of Internal Auditing on due professional care.