Security involves being free from harm, danger, or fear. Computer security, also known as cyber security, protects computer systems from theft, damage, and disruption, while information security safeguards information from unauthorized access and destruction. The importance of computer security lies in maintaining the confidentiality, integrity, and availability of systems and resources to prevent financial loss, identity theft, and other potential issues.

1. Security refers to the state of being safe –
free from harm, danger, or fear.
What is Security?

2. What is Computer Security/Information Security?
Computer security, also known as cyber security or IT security, is
the protection of computer systems from the theft or damage to their
hardware, software or information, as well as from disruption or
misdirection of the services they provide.
Information security means the protection of information from
unauthorized access, use, modification, disruption or destruction
regardless of the form the data may take (i.e. physical, electronic).

3. Why Computer Security?
Computer security is important for protecting the Confidentiality,
Integrity, and Availability of computer systems and their resources.
Security
Objectives

4. Potential Losses Due to Security Attacks
Financial loss
Unavailability
of resources
Identity theft
Loss of trust
Data
loss/theft
Misuse of computer
resources
Potential
Losses