CISSP Security & Risk Management-Risk Analysis

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Quantitative Analysis (ALE=SLE x ARO) ALE = Annualized Loss Expectancy (A dollar amount that estimates the loss potential from a risk in a span of year) SLE = Single Loss Expectancy (A dollar amount that is assigned to a single event that represents the company’s potential loss) ARO = Annualized Rate of Occurrence (Frequency of… Read more »

CISSP Security & Risk Management-The After-Action Review

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  After-action review (AAR): a detailed examination of events that occurred from incident detection to recovery Identify areas of the BC/DR plans that worked, didn’t work, or need improvement AAR’s are conducted with all participants in attendance AAR is recorded for use as a training case AAR brings the BCP/DRP teams’ actions to a close

CISSP Security & Risk Management- Global Legal and Regulatory Issues

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Computer/Cyber Crime CryptoLocker Ransomware – Spreads via email and propagates rapidly. Encrypts various file types and then a pop-up window appears to inform user about the actions performed on computer and, therefore demand a monetary payment for files to be decrypted.

CISSP Security & Risk Management- Computer Crimes

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Computer as incidental to other crimes Involves crimes where computers are not really necessary for such crimes to be committed. Instead computers facilitate these crimes and make them difficult to detect. Examples of crimes in this category may include money laundering and unlawful activities on bulletin board systems.

CISSP Telecommunications and Network-Tunneling Protocols

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Tunneling is a method of transferring data from one network to another by encapsulating the packets  in an additional header. The additional header provides routing information so that the encapsulating payload traverse the intermediate networks.

CISSP Telecommunications and Network Security-IPSec

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 IPSec IPSec is an architecture or framework for security services for IP networks. It works at the Network Layer of the OSI Model. It is actually a standard for secure data transmission. It provides mechanisms for authentication and encryption. Defined by RFC 4301 and carries a set of functions, it is mandatory in IPv6. IPSec… Read more »

CISSP WANS and Their Components

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WANS and Their Components Wide area networks (WANs) are considerably different than LANs. Organizations usually own their own LANs, but WAN services are typically leased; it’s not feasible to have your network guy run a cable from New York to Dallas.

CISSP LANs and Their Components

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A local area network (LAN) is a critical component of a modern data network. A LAN is comprised of one or more computers, a communication protocol, a network topology, and cabling or a wireless network to connect the systems.

CISSP System Validation

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No system or architecture will ever be completely secure; there will always be a certain level of risk.

CISSP Security Models of Control

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Security Models of Control Security models of control are used to determine how security will be implemented, what subjects can access the system, and what objects they will have access to. Simply stated, they are a way to formalize security policy.

CISSP Security Mechanisms

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Although a robust architecture is a good start, real security requires that you have security mechanisms in place to control processes and applications. Some good security mechanisms are described in the following sections.

CISSP Penetration Testing

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  Penetration testing is a series of activities undertaken to identify and exploit security vulnerabilities.

CISSP Single sign-on

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Single sign-on is an attempt to address a problem that is common for all users and administrators.

CISSP Access Control Models

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Data access controls are established to control how subjects can access data, what they can access with it, and what they can do with it once accessed. Three primary types of access control are discussed in this section.     Mandatory Access Control (MAC)

CISSP Legal Systems

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The two law systems that form the basis of legal systems in most countries are:

CISSP Kerberos

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Kerberos is a network authentication protocol created by the Massachusetts Institute of Technology (MIT) that uses secret-key cryptography. Kerberos has three parts: a client, server, and trusted third party (KDC) to mediate between them.

CISSP Attacks

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Types of Attacks Denial of Service (DoS) Smurf Fraggle SYN Flood Teardrop Distributed Denial of Service (DDoS) Ping Sweep Port Scan Salami attack Man-in-the-Middle Session or TCP Hijacking Replay Buffer Overflow Scareware and Ransomeware Password attack Covert channels  Web Attacks SQL Injection – An injection of SQL query through input data from client to application (database)…. Read more »

CISSP Asymmetric Systems

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CISSP algorithms

Asymmetric Systems –Uses a pair of keys (private and public) for encryption and decryption

CISSP Intrusion-Detection Systems (IDS)

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An IDS is designed to function as an access-control monitor. It can monitor network or host activity and record which users attempt to access specific network resources.