part 2- an it auditing framework why do how our systems work matter? why do how we manage our...

Part 2- An IT Auditing Framework

Why do how our systems work matter? Why do how we manage our systems

matter? How can systems harm a unit’s ability to

accomplish its goals?

What are you hoping to obtain from these courses?

Foundations of System Controls

System Control’s Foundation Blocks

IT Dependent Manual Controls

Application Controls (Automated)

Job Scheduling and Management

Application Security

Network Security

Change Management

Data Security - Database

Data Security -Operating System

Physical Security

Proposed Foundation StrategyIT Dependent Manual

ControlsApplication Controls

(Automated)

Job Scheduling and Management

Application Security

Network Security

Change Management

Data Security - Database

Data Security -Operating System

Physical Security

System Control Pyramid

Network Security

Data Security - Database

Data Security -Operating System

Change Management

Application Security

IT Dependent

Manual Controls

Application Controls

(Automated)

Staf

fing

Workstation

ConfigurationD

isas

ter

Rec

over

y

Equipm

ent

Managem

ent

IT General Controls

Job Scheduling and Management

Physical Security

High Level Control Framework

IT General Controls (ITGCs) - Provide assurance that IT-Dependent and Application Controls can be relied upon

Include controls over the IT environment, computer operations, access to applications and data (security), and program changes

IT General Control Definition

Strong ITGC -Prevention and Detection Controls Prevention controls stop inappropriate items from

occurring New user approval process Strong password controls Access termination process

Detection controls identify inappropriate items that can then be corrected Periodic Access Review

Not all textbook controls must be designed and operating effectively to address significant risks and provide a strong ITGC environment

Strong ITGC Determination

Automated (Application) Controls IT Dependent Manual Controls (Purely) Manual Control

Business Process Controls

Sufficient Controls must act in concert

Consider securing an application like a house

ITGC Controls and the Application's House

How does a front door protect your house?

What are the Key Components?

ITGC Controls and the Application’s House

ITGC Controls and the Application's House

Burglar smashed the window on the door and accessed the dead bolt lever

Subsequently battered the door handle lock until the frame caved in

How (My) Front Door Failed

Internal hacker exploits a vulnerability in the Operating System

Vulnerability used to disable application controls

Hacker later uses a “brute force” attack to gain access via the network and embezzle from the University

How (Application’s) Front Door Could Fail

For my house’s – A camera

For a server –Intrusion monitor that monitors OS activity

Compensating Control - Detection

Where do you believe an audit should start? What initial items should be confirmed?

Where Should an Audit Start

Strong ITGCs provide assurance that effective system related controls may be relied upon ITGCs build upon each other Not all textbook controls are always required ITGCs include both Preventative and Detective

controls System related controls include application

(automated) and IT-dependent (system supported) controls

(Purely) Manual Controls do not require system review

IT in the Control Universe Summary

Future discussion items1. Evaluating Code Change Management

Processes

2. Evaluating Disaster Recovery Preparations

3. Evaluating Server Configurations/Security

4. Evaluating Network Concerns and Intrusion Risks

5. Evaluating Workstation Management

Future discussion items6. Evaluating Application Design, Controls, and

Integration with the Business Processes

7. Evaluating IT strategies – Strategic vs. Tactical issues

8. Strategies used to build the overall IT audit plan for the department

9. Looking at IT governance frameworks -Cobit