1. By: Marc Angelo Sebastian
BTTE-3 COET
Configuring Security and
Defending your Computer

2. • We will answer the following:
 What is the Four Layers of Defense?
 Why do we need to know these Four Layers of Defense?
 What is Group Policy?
 Why do we need to understand the concept of Group
Policy?
In this session…

3. Four Layers of
Defense

4. YOU!
Antivirus / AntiMalware
& Firewall
OS Settings
Layer 4
Layer 3
Layer 2
Layer 1
Four Layers of Defense
Secure Passwords

5. YOU!Layer 1
Four Layers of Defense
 Users are the weakest link of the system.
 Learn more about your computer.
 Be proactive
 Develop “defensive computing” habits
YOU!
Four Layers of Defense
Layer 1

6. Antivirus / AntiMalware
& Firewall
Layer 2
YOU!Layer 1
 Install and use reputable Antivirus / Antimalware programs.
 Update frequently and regularly.
 Use Firewall to protect your system from external threats.
Antivirus / AntiMalware & Firewalls
Layer 2
Four Layers of Defense
Four Layers of Defense

7. OS SettingsLayer 3
Antivirus / AntiMalware
& Firewall
Layer 2
YOU!Layer 1
Four Layers of Defense
 Learn to use your operating system’s security features.
• For example, Windows 7 has its UAC (User Account Control
).
 Disable unnecessary features and services.
• For example, disable Windows “Autoplay” feature.
 Install the latest recommended patches and updates.
 Regular users should use Standard
account, not Administrator account.
OS Settings
Four Layers of Defense
Layer 3

8. YOU!
Antivirus / AntiMalware
& Firewall
OS Settings
Layer 4
Layer 3
Layer 2
Layer 1
Secure Passwords
Four Layers of Defense
 This is your last line of defense.
 All user accounts, especially Administrator, must be password
protected.
 Passwords should be at least 8 characters long.
• Mix letters, numbers, special characters.
 Passwords should be easy to remember
but difficult to guess.
Secure Passwords
Four Layers of Defense
Layer 4

9. Group Policy
Management

10.  A feature of the Microsoft Windows NT family of operating
systems.
 Controls the working environment of user and computer
accounts.
 Provides the centralized management and configuration in an
Active Directory environment.
Group Policy
Group Policy Management

11.  A directory service that Microsoft developed for Windows
domain networks.
 Included in most Windows Server operating systems.
 Set authentication and authorization to users and computers.
 Set a policy in a specific directory.
Active Directory (AD)
Group Policy Management

12. How the Group Policy works
 The Administrator in the Windows Server create a New Poli
cy to the Group Policy.
Four Layers of Defense

13. How the Group Policy works
 The Domain Server distributed the New Policy to the users an
d computers.
 “One action” of the Domain Server can apply to ALL users an
d computers.
Group Policy Management

14. What you can do in Group Policy
1. Schedule the log on hours of the users.
2. Auto-shutdown the computers.
3. Secure what users can ONLY do in the computer.
4. Disable shutdown button in computers.
5. Disable USB ports and Internet in a specific user and comput
er.
6. Set the disk space in computer what only the user can use.
Group Policy Management

15. Thank you!
“An ounce of prevention
is better than a pound of cure”
-Benjamin Franklin