computer security

computer security refers to protecting and securing computers and their related data, networks, software, hardware from unauthorized access, misuse, theft, information loss, and other security issues. The Internet has made our lives easier and has provided us with lots of advantages but it has also put our system’s security at risk of being infected by a virus, of being hacked, information theft, damage to the system, and much more

Three key objectives that are at the heart of computer security:

1.Confidentiality: Preserving authorized restrictions on information access and disclosure, including means for protecting personal privacy and proprietary information. A loss of confidentiality is the unauthorized disclosure of information.

2.Integrity: Guarding against improper information modification or destruction, including ensuring information nonrepudiation and authenticity. A loss of integrity is the unauthorized modification or destruction of information

3.Availability: Ensuring timely and reliable access to and use of information. A loss of availability is the disruption of access to or use of information or an information system .Assures that systems work promptly and service is not denied to authorized users.

Types of computer security

Computer security can be classified into four types:

1. Cyber Security: Cyber security means securing our computers, electronic devices, networks , programs, systems from cyber attacks. Cyber attacks are those attacks that happen when our system is connected to the Internet.

2. Information Security: Information security means protecting our system’s information from theft, illegal use and piracy from unauthorized use. Information security has mainly three objectives: confidentiality, integrity, and availability of information.

3. Application Security: Application security means securing our applications and data so that they don’t get hacked and also the databases of the applications remain safe and private to the owner itself so that user’s data remains confidential.

4. Network Security: Network security means securing a network and protecting the user’s information about who is connected through that network. Over the network hackers steal, the packets of data through sniffing and spoofing attacks, man in the middle attack, war driving, etc, and misuse the data for their benefits.

~khushi sanghavi (53003230009).