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101 Basic concepts of information security
1.
www.huawei.com Copyright © 2018
Huawei Technologies Co., Ltd. All rights reserved. Huawei Certified ICT Associate Security v3.0 Professional Training Program
2.
www.huawei.com Copyright © 2018
Huawei Technologies Co., Ltd. All rights reserved. Huawei Certified ICT Associate Security v3.0 Instructor: Ssendi Samuel
3.
www.huawei.com Copyright © 2018
Huawei Technologies Co., Ltd. All rights reserved. Basic Concepts of Information Security
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Page 3 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Foreword Information security is the process of ensuring safe data communication and preventing issues such as information leakage, modification, and disruption. This document describes the basic concepts and protection measures of information security, as well as information security risks and associated assessment and avoidance methods.
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Page 4 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Objectives Upon completion of this course, you will be able to: Describe the definition and characteristics of information security. Explain the characteristics and differences of security models. Differentiate between security risks.
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Page 5 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Contents 1. Information and Information Security 2. Information Security Risks and Management
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Page 6 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Information information created, received, and maintained as evidence and information by an organization or person, in pursuance of legal obligations or in the transaction of business. --- ISO/IEC Guidelines for the Management of IT Security (GMITS) What is information? Books/ Letters Emails Radar signals State secrets Test questions Transaction data
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Page 7 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Information Security Information security refers to the preservation of the confidentiality, integrity, and availability of data through security technologies. These technologies include computer software and hardware, network, and key technologies. Organizational management measures throughout the information lifecycle (generation, transmission, exchange, processing, and storage) are also essential. The following will be affected if information assets are damaged: The aim of information security is to protect data against threats through technical means and effective management. National security System operating and continuous development Personal privacy and property
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Page 8 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Information Security Development Limited communication technologies and dispersedly stored data Early 1900s Communication secrecy stage Information-based security replaces traditional security 1980s Information assurance stage Post-1960s Information security stage Internet development brings new challenges and threats to information security
10.
Page 9 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Photo or Information Leakage? After the Chinese government invited bids for oil production equipment, Japanese intelligence experts used this simple photo to uncover the following secrets of the Daqing Oilfield: Located between 46N and 48N, as indicated by the clothing of Wang Jinxi Diameter of the oil well, inferred from the handle rack
11.
Page 10 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Communication Secrecy Stage In the early 1900s, communication technologies were underdeveloped, and data was stored in different locations. Information system security was limited to physical security of information and cipher- based security of communication (mainly stream cipher). As long as information was in a relatively secure place and unauthorized users were prohibited from accessing the information, data security could be generally guaranteed.
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Page 11 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Information Security Stage Since the 1990s, Internet technologies have developed rapidly, and information leaks have increased. As a result, in addition to confidentiality, integrity and availability, information security began to focus on more principles and objectives, such as controllability and non- repudiation. Confidentiality Integrity Availability Controllability Non- repudiation
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Page 12 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Information Assurance Stage Business-oriented information security assurance Different service traffic with various risks and protection methods Security system Cohesive security management and technical protection; proactive defense but not passive protection Management Talent development and system establishment for security management Business
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Page 13 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Case - WannaCry In 2017, the WannaCry ransomware cryptoworm, propagated through EternalBlue, infected over 100,000 computers, causing a loss of US$8 billion. Energy Government Education Transportation
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Page 14 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Case - OceanLotus Since April 2012, the OceanLotus group has carried out targeted penetration and attacks on important sectors of China, such as the government, scientific research institutes, maritime institutions, maritime construction, and shipping enterprises. The attacks are intended to obtain confidential information, intercept intelligence sent out by attacked computers, and enable the computers to automatically send related intelligence.
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Page 15 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Discussion: What Are the Causes of Such Attacks? Direct Cause Indirect Cause Virus Vulnerability Trojan horse Backdoor program DDoS attack … Information system complexity Human and environment factors
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Page 16 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Increasing importance • The information network has become the foundation of economic prosperity, social stability, and national development. • Informatization profoundly influences the global economic integration, national strategy adjustment, and security priorities. • Information security has transformed from a technical issue into a matter of national security worldwide. Applicable to many technical fields For example: • Command, Control, Communications, Computers and Intelligence (C4I) system • E-commerce system • Biomedical system • Intelligent Transport System (ITS) Significance of Building Information Security Importance Applicability
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Page 17 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Contents 1. Information and Information Security 2. Information Security Risks and Management
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Page 18 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Risks Involved in Information Security Risks Physical risks Other risks System risks Information risks Management risks Application risks Network risks
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Page 19 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Physical Risks Device theft and destruction Link aging, man-made damage, and bite from animals Network device fault Network device unavailability due to power failure Electromagnetic radiation in the equipment room
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Page 20 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Information Risks Storage security Transmission security Access security
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Page 21 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Information Transmission Security Headquarters Branch Enterprise business information Tampered information Attacker
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Page 22 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Information Access Security Intranet Unauthorized user Illegal login Authorized user Authentication server on the network
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Page 23 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. System Risks Database system configuration security Security database Security of services running in the system
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Page 24 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Application Risks Network virus Operating system security Email application security Web service security FTP service security DNS service security Business application software security
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Page 25 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Network Risks Security zone
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Page 26 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Management Risks Determine whether the information system has management risks from the following aspects: National policy • Effective national information security regulations formulated • Specialized agency to manage information security • Security management rules and equipment room management system with clear responsibilities and rights • Enterprises can establish own security management organizations Enterprise system • Effective security policies and high-quality security management personnel • Effective supervision and inspection system, and adherence to rules and regulations Management system
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Page 27 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Significance of Information Security Management According to statistics, 70% of enterprise information loss is caused by negligence or intentional leakage by internal staff. Security technologies are only the means to control information security. They can only be effective with the appropriate support of management procedures. 70% Weak security awareness among employees Loose authorization rules Non- standard system operations Malicious data theft Technologies 30% Management 70%
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Page 28 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Current Development of Information Security Management Each country has introduced its own information security development strategy and plan. Introducing information security development strategies and plans Defining and standardizing information security work through laws is the strongest guarantee for effective implementation of security measures. Strengthening legislation to achieve unified and standardized management The era of standardized and systematized information security management began in the 1990s. ISO/IEC 27000 is the best known system. Entering the era of standardized and systematized management Information Security Management
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Page 29 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Quiz 1. Information security incidents frequently occur because of security attack methods, such as vulnerabilities, viruses, and backdoor programs. A. True B. False
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Page 30 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Summary Information security development history Basic concepts of information security
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Page 31 Copyright ©
2018 Huawei Technologies Co., Ltd. All rights reserved. Thank You www.huawei.com
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