Principles of information security lecture

Provide a proportional response. Security classification for information[ edit ] An important aspect of information security and risk management is recognizing the value of information and defining appropriate procedures and protection requirements for the information.

Run Frequent Tests Hackers are constantly improving their craft, which means information security must evolve to keep up. This is often described as the "reasonable and prudent person" rule. Consider productivity, cost effectiveness, and value of the asset.

Organizations have a responsibility with practicing duty of care when applying information security. Such recordings are also limited to personal use.

Cryptography is used in information security to protect information from unauthorized or accidental disclosure while the information is in transit either electronically or physically and while information is in storage. The Information Systems Audit and Control Association ISACA and its Business Model for Information Security also serves as a tool for security professionals to examine security from a systems perspective, creating an environment where security can be managed holistically, allowing actual risks to be addressed.

Effective policies ensure that people are held accountable for their actions. A key that is weak or too short will produce weak encryption. The three types of controls can be used to form the basis upon which to build a defense in depth strategy. Identify, select and implement appropriate controls.

Controls can vary in nature, but fundamentally they are ways of protecting the confidentiality, integrity or availability of information. Defense in depth computing Information security must protect information throughout its lifespan, from the initial creation of the information on through to the final disposal of the information.

Use qualitative analysis or quantitative analysis.

Information security

The foundation on which access control mechanisms are built start with identification and authentication. Typically the claim is in the form of a username. Laws and other regulatory requirements are also important considerations when classifying information.

With a conceptual and principled view of information security, you can analyze a security need in the right frame of reference or context so you can balance the needs of permitting access against the risk of allowing such access.

The policies prescribe what information and computing services can be accessed, by whom, and under what conditions.

Plan for Failure Planning for failure will help minimize its actual consequences should it occur. If the breach is not serious, the business or organization can keep operating on backup while the problem is addressed.

Cryptographic solutions need to be implemented using industry-accepted solutions that have undergone rigorous peer review by independent experts in cryptography. To be effective, policies and other security controls must be enforceable and upheld.

Information Security Principles of Success

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The first step in information classification is to identify a member of senior management as the owner of the particular information to be classified. Within the need-to-know principle, network administrators grant the employee the least amount of privileges to prevent employees from accessing more than what they are supposed to.

Authentication[ edit ] Authentication is the act of verifying a claim of identity. Organizations have a responsibility with practicing duty of care when applying information security. IT professionals run tests, conduct risk assessments, reread the disaster recovery plancheck the business continuity plan in case of attack, and then do it all over again.

Stay ahead of the curve with Techopedia! This requires information to be assigned a security classification. Treasury 's guidelines for systems processing sensitive or proprietary information, for example, states that all failed and successful authentication and access attempts must be logged, and all access to information must leave some type of audit trail.

Calculate the impact that each threat would have on each asset. In broad terms, the risk management process consists of: To be effective, policies and other security controls must be enforceable and upheld. The bank teller asks to see a photo ID, so he hands the teller his driver's license.

Evaluate policies, procedures, standards, training, physical securityquality controltechnical security. Laws and other regulatory requirements are also important considerations when classifying information.

This is called authorization.Information security is the protection of information and it is critical elements, including the systems and hardware that used, store, and transmit that information, Thus, assuring the security of utility services are critical elements in information system.

4. At the core of information security is information assurance, the act of maintaining the confidentiality, integrity and availability (CIA) of information, ensuring that information is not compromised in any way when critical issues arise.

Principles of Information Systems Security. This chapter introduces these key information security principles and concepts, showing how the best security specialists combine their practical knowledge of computers and networks with general theories about security, technology, and human nature.

Information security

Sep 30,  · PowerPoint HTML Lecture 2, The Software Process WIRELESS AND MOBILE NETWORKING PPT PDF SLIDES Professor: Katia Obraczka (katia "at" cse. ucsc. edu) Textbook No textbook is required. INFORMATION SECURITY LECTURE NOTES (Subject Code: BIT ) for Bachelor of Technology in Information Technology Department of Computer Science and Engineering & Information Technology Veer Surendra Sai University of Technology (Formerly UCE, There are five principles of security.

They are as follows. Principles of Information Security, Fifth Edition 7 This preview has intentionally blurred sections. Sign up to view the full version.

Principles of information security lecture
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