Presentation on Cyber Security
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This document provides an overview of cyber security fundamentals including definitions of key concepts like cryptography, symmetric and public key encryption, firewalls, virtualization, and radio-frequency identification (RFID). It defines cyber security as protecting computers and networks from unauthorized access through technologies and processes. Some key advantages are defending against attacks while allowing secure browsing and data protection. Cyber crimes include illegal access, data interference, and fraud. Symmetric encryption uses the same key for encryption and decryption while public key encryption uses separate public and private keys.
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Cyber crime involves unlawful activities using computers and the internet. The document categorizes cyber crimes as those using computers to attack other computers or as tools to enable real-world crimes. It provides examples of various cyber crimes like hacking, child pornography, viruses, and cyber terrorism. It stresses the importance of cyber security to defend against attacks through prevention, detection and response. The document advises safety tips like using antivirus software, firewalls, and strong passwords. India's cyber laws address both traditional crimes committed online and new crimes defined in the Information Technology Act.
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This document discusses cybercrime and how to prevent becoming a victim. It begins by explaining why we should be aware of cybercrime given our increasing online activities. The objectives are then outlined as providing awareness of cybercrime, recognizing methods, understanding cyber laws, and learning to avoid victimization. Various types of cybercrime are defined including those against persons, property, and government. Examples like phishing, hacking, and cyber terrorism are described. The history of cybercrime in India involves many website hacks and defacements. Laws are still lacking to fully address cybercrime. Awareness, security software, and caution are recommended for protection.
Cyber crime ppt
Cyber crime is a growing problem in India. Some common cyber crimes reported in India include phishing, hacking of government websites, and identity theft. India ranks 11th globally for reported cyber crimes, which are increasing due to factors like rapid growth of internet users. Common cyber crimes involve unauthorized access to systems, data theft and alteration, and using computers to enable other illicit activities. While laws like the IT Act 2000 have been enacted to tackle cyber crimes, enforcement remains a challenge as only a small percentage of crimes are reported. Techniques like antivirus software, firewalls, and educating users can help address the problem.
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Cyber Security Presentation "It Will Never Happen To Me"
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Similar to Presentation on Cyber Security
Network security
Access control lists (ACLs) determine which devices can access routers based on IP address. ACLs can filter packets based on port numbers and are configured for inbound or outbound traffic. Standard ACLs filter based on source IP, while extended ACLs can filter based on additional attributes like protocol, ports, and IP addresses. Virtual private networks (VPNs) use protocols like IPSec and SSL with authentication methods such as certificates to securely transmit data over unsecured networks.
Describe firewalls
A firewall protects networked machines from malicious intrusion by inspecting packets and checking if they match criteria to pass through the protected network. An intrusion detection system (IDS) inspects all incoming and outgoing network packets to identify suspicious activity that may indicate a network or system attack. An IDS software detects more types of malicious activities already in the system and alerts users of any security compromise. An intrusion prevention system (IPS) provides system guidelines and policies for network traffic management along with intrusion detection and alerting for suspicious malware, and allows users to take action upon being alerted. An IPS is designed to detect and stop intrusions and block malicious traffic automatically before attacks occur.
Wireless Security Needs For Enterprises
This document discusses improving wireless security for enterprise/corporate users compared to home users. It analyzes security threats like encryption attacks and outlines techniques like WEP, WPA, and WPA2. The key points are:
1) Wireless networks are vulnerable to attacks using tools like AirSnort but techniques like WPA2 with AES encryption provide stronger security.
2) Corporate networks require robust security as they contain sensitive customer data, while basic techniques like WEP may suffice for home networks.
3) The document recommends home users enable security settings and use WPA-PSK encryption to protect their wireless networks.
Day4
Network security is important to protect systems from attacks. Firewalls act as the first line of defense, blocking unauthorized incoming and outgoing network traffic based on security rules. Different types of firewalls operate at different layers of the OSI model and provide varying levels of security. No single security measure can guarantee protection, so a defense-in-depth approach using firewalls along with other tools like intrusion detection systems is recommended.
Iot Security
The document discusses Internet of Things (IoT) security challenges and countermeasures. It begins with basics of IoT and sensors, then discusses how IoT connects to the internet. It outlines several approaches to securing IoT, including restricted access, encryption of network and data, managing default APIs, addressing human elements of security, and learning from past exploits. Specific threats like denial of service attacks, man-in-the-middle attacks, and brute force/dictionary attacks are examined. The document concludes that IoT security design must enable open yet secure infrastructure while respecting user privacy through individual policies.
Network security
Network security refers to protecting computer networks from unauthorized access and system threats. Effective network security implements measures like firewalls, encryption, and user authentication to restrict access and ensure confidentiality, integrity, and availability of network resources. As networks and threats evolve, network security requires an adaptive, layered approach using tools like antivirus software, intrusion detection, and biometrics alongside continued software and hardware advances.
Network Security & Ethical Hacking
Security involves ensuring data integrity, availability, and confidentiality against threats. It can be computer or network security. Data integrity means data cannot be modified without authorization. Availability means information systems and data are accessible when needed. An information security management system (ISMS) follows the PDCA cycle of plan, do, check, act to manage security risks and ensure business continuity. ISO/IEC 27000 standards provide guidance for implementing an ISMS.
Chapter 4.ppt
Network security involves protecting computer networks and systems from unauthorized access, theft of or damage to hardware, software or electronic data. The chapter discusses network security basics, threats like cyberattacks and phishing, vulnerabilities from weaknesses in TCP/IP protocols and buffer overflows. It also covers network security protocols like IPsec, SSL/TLS, and wireless encryption methods like WEP, WPA, and WPA2 that are used to secure wireless networks and encrypt data transmitted over them. Administrative, technical and physical controls help defend networks against various security risks and assure network integrity and safety.
Wireless Security and Mobile DevicesChapter 12Princi.docx
Wireless Security
and Mobile Devices
Chapter 12
Principles of Computer Security, Fifth Edition
Copyright © 2018 by McGraw-Hill Education. All rights reserved.
Objectives
Describe the different wireless systems in use today.
Detail WAP and its security implications.
Identify 802.11’s security issues and possible solutions.
Learn about the different types of wireless attacks.
Examine the elements needed for enterprise wireless deployment.
Examine the security of mobile systems.
Principles of Computer Security, Fifth Edition
Copyright © 2018 by McGraw-Hill Education. All rights reserved.
2
Key Terms (1 of 4)
Beacon frames
Bluebugging
Bluejacking
Bluesnarfing
Bluetooth
Bluetooth DoS
Captive portal
Containerization
Custom firmware
Direct-sequence spread spectrum (DSSS)
Disassociation
Extensible Authentication Protocol (EAP)
EAP-FAST
EAP-TLS
EAP-TTLS
Principles of Computer Security, Fifth Edition
Copyright © 2018 by McGraw-Hill Education. All rights reserved.
Beacon frames – A series of frames used in WiFi (802.11) to establish the presence of a wireless network device.
Bluebugging – The use of a Bluetooth-enabled device to eavesdrop on another person’s conversation using that person’s Bluetooth phone as a transmitter. The bluebug application silently causes a Bluetooth device to make a phone call to another device, causing the phone to act as a transmitter and allowing the listener to eavesdrop on the victim’s conversation in real time.
Bluejacking – The sending of unsolicited messages over Bluetooth to Bluetooth-enabled devices such as mobile phones, tablets, or laptop computers.
Bluesnarfing – The unauthorized access of information from a Bluetooth-enabled device through a Bluetooth connection, often between phones, desktops, laptops, and tablets.
Bluetooth DOS – The use of Bluetooth technology to perform a denial-of-service attack against another device. In this attack, an attacker repeatedly requests pairing with the victim device. This type of attack does not divulge information or permit access, but is a nuisance. And, more importantly, if done repeatedly it can drain a device’s battery, or prevent other operations from occurring on the victim’s device.
Captive portal – A website used to validate credentials before allowing access to a network connection.
Containerization – Dividing a device into a series of containers, with one container holding work-related materials and the other personal materials.
Custom firmware - Firmware for a device that has been altered from the original factory settings.
Direct-sequence spread spectrum (DSSS) – A method of distributing a communication over multiple frequencies to avoid interference and detection.
Disassociation – An attack against a wireless system designed to disassociate a host from the wireless access point, and from the wireless network. Disassociation attacks stem from the deauthentication frame that is in the IEEE 802.11 (Wi-Fi) standard.
Extensible Authentication Protocol.
Network security.pptx
This document discusses network security. It defines a network and network security. Network security covers technologies, devices, and processes to protect the integrity, confidentiality, and accessibility of computer networks and data. Security is needed to protect vital information while allowing access to authorized users, provide authentication and access control, and guarantee availability of resources. The document discusses hackers, cryptography, network viruses, wireless network security including WEP and WPA, and access control methods like host-to-host authentication and using authentication servers.
Securing E-commerce networks in MIS and E-Commerce
An intrusion detection system (IDS) monitors network traffic to detect threats and sends alerts. An intrusion prevention system (IPS) also detects threats but can actively block or drop malicious traffic. Firewalls analyze network packet metadata to allow or block traffic based on rules. They create barriers between networks while IDS monitors and IPS detects and prevents threats. VPNs encrypt data to securely transmit over public networks and hide users' online activity and location. Together these tools enhance e-commerce security.
DDOS (1).ppt
This document discusses common denial of service (DoS) attacks and methods to mitigate them. It describes two common DoS attack methods: SYN floods which exploit TCP implementation and ping of death attacks using IP fragmentation. Distributed denial of service (DDoS) attacks are explained as using these methods from multiple compromised systems. Notorious DDoS attacks like Smurf and MyDoom are outlined. The document then discusses techniques to mitigate attacks like using access lists and network address translation (NAT). It provides examples of access list configuration and describes NAT's role in firewall capabilities and preventing spoofing and flooding attacks.
Internet of things , presentation, rajiv gandhi university
What Is an IoT Device?
It’s a physical object that connects to the Internet. It can be a fitness tracker, a thermostat, a lock or appliance – even a light bulb.
Imagine shoes that track your heartbeat… and can flag potential health problems. You don’t have to imagine – these “smart” shoes already exist!
How Will It Affect Me?
The Internet of Things has arrived and it’s going to introduce incredible opportunity over the next five years. And while smart things are exactly that, the IoT industry has a long way to go in terms of overall security. Many of today’s IoT devices are rushed to market with little consideration for basic security and privacy protections: “Insecurity by design.”
This puts you and everyone else at risk: from unwittingly being spied on or having your data compromised to being unable to lock your own home. You could even become part of a botnet that attacks the Internet. Your insecure webcam – along with millions of others – could be used to attack the power grid of an entire country.
From dental sensors that can monitor what a person eats to kitty litters that can track a cat’s every movement, it can be difficult to sort fact from fiction when it comes to the Internet of Things. Can you tell which is real and which is not?
Read More
Wireless security report
The document discusses wireless network security and methods to prevent unauthorized access. It describes common types of wireless encryption like WEP and WPA and risks from rogue access points. Effective wireless security policies and systems like WIPS are important to enforce policies and prevent intrusion. Potential modes of unauthorized network access are also outlined, as well as security measures, mobile device security categories, and methods for implementing network encryption using authentication servers and client software. Open access points are also discussed, with arguments for and against allowing public access to wireless networks.
Ch05 Network Defenses
Security+ Guide to Network Security Fundamentals, 3rd Edition, by Mark Ciampa
Knowledge and skills required for Network Administrators and Information Technology professionals to be aware of security vulnerabilities, to implement security measures, to analyze an existing network environment in consideration of known security threats or risks, to defend against attacks or viruses, and to ensure data privacy and integrity. Terminology and procedures for implementation and configuration of security, including access control, authorization, encryption, packet filters, firewalls, and Virtual Private Networks (VPNs).
CNIT 120: Network Security
http://samsclass.info/120/120_S09.shtml#lecture
Policy: http://samsclass.info/policy_use.htm
Many thanks to Sam Bowne for allowing to publish these presentations.
CNIT 140: Perimeter Security
A college lecture for our CCDC prep class.
Teacher: Sam Bowne
Website: https://samsclass.info/140/140_F16.shtml
Iot(security)
the ppt describes about the basics of iot,its applications, security challenges , hacks and the solutions to the security challenges
Introduction to Cyber security module - III
This document provides an overview of information and network detection topics including identification and authorization, intrusion detection systems, firewalls, VPN security, and cloud security. Identification means claiming an identity, authentication proves identity, and authorization determines access rights. Intrusion detection systems monitor for malicious activity via signature-based detection of known threats or anomaly-based detection of abnormal behavior. Firewalls control network traffic based on rules and establish barriers between trusted internal networks and other networks like the Internet. VPNs extend private networks securely across public networks using encryption. Cloud security focuses on identity management, physical security, personnel security, availability, application security, and privacy.
Data security
The document discusses data security and various threats to data. It provides definitions of key terms like data, security, and data security. It then describes three main objectives of the project: to understand data security threats and their backgrounds, and techniques to defend against these threats. Various threats are outlined, like human threats from hackers, staff, and spies. Technologies for security like cryptography, firewalls, and intrusion detection systems are also summarized. The document provides an overview of the importance of data security.
Eximbank security presentation
This document discusses network security solutions for Eximbank. It begins with an overview of network security and the need for an integrated defense-in-depth approach using firewalls, intrusion detection systems, antivirus software, vulnerability scanners, and centralized management. It then outlines types of attacks and provides a security blueprint. Specific solutions discussed include the Cisco PIX firewall, CheckPoint firewall, intrusion detection systems, antivirus systems, vulnerability scanners, and identity and policy management solutions. The document concludes with an overview of the proposed security design for Eximbank incorporating these various solutions.
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Internet of things , presentation, rajiv gandhi university
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Presentation on Cyber Security
- 1. Independent Study On CYBER SECURITY Under guidance of: By: Anand Katera Dr.SB Kulkarni 8th Sem-SDMCET
- 2. Contents UNIT1: Cyber Security Fundamentals 1.1 Introduction to cyber security 1.2 Basic Cryptography 1.3 Symmetric Encryption 1.4 Public Key Encryption 1.5 The Domain Name System (DNS) 1.6 Firewalls 1.7 Virtualization 1.8 Radio-Frequency Identification
- 3. What is cyber security? Cyber security refers to the technologies and processes designed to protect computers, networks and data from unauthorized access, vulnerabilities and attacks delivered via the Internet by cyber criminals.
- 4. ADVANTAGES OF CYBER SECURITY The cyber security will defend us from critical attacks. It helps us to browse the various websites securely. Internet Security process all the incoming and outgoing data on your computer. It will defend us from hacks and virus. Application of cyber security used in our PC needs to update regularly.
- 5. Cyber crimes includes Illegal access Illegal Interception System Interference Data Interference Misuse of devices Fraud
- 6. Basic Cryptography Definition: Cryptography is a method of storing and transmitting data in a particular form so that only those for whom it is intended can read and process it.
- 7. Symmetric Encryption Symmetric Encryption is an Encryption algorithm where the same key is used for both Encryption and Decryption. The key must be kept secret, and is shared by the message sender and recipient.
- 8. Public Key Encryption A Public Key Encryption system that uses two keys -- a public key known to everyone and a private or secret key known only to the recipient of the message. Example: When Bob’s wants to send a secure message to Alice, he uses Alice's public key to encrypt the message. Alice then uses his private key to decrypt it.
- 10. Domain Name System (DNS) The DNS translates Internet domain and host names to IP addresses. DNS automatically converts the names we type in our Web browser address bar to the IP addresses of Web servers hosting those sites. DNS implements a distributed database to store this name and address information for all public hosts on the Internet.
- 11. Firewall A firewall is a set of related programs, located at a network gateway server, that protects the resources of a private network from users from other networks. imposes restrictions on network services only authorized traffic is allowed auditing and controlling access can implement alarms for abnormal behavior
- 12. Virtualization Virtualization is nothing but creating a virtual environment for any program to run on an existing platform as a guest, without interfering or interrupting with the host platform’s services or programs. The virtual environment running might be an Operating System, Storage devices,etc.
- 13. Example: Application virtualization is software technology that encapsulates application software from the underlying operating system on which it is executed.
- 14. What is RFID? Radio-frequency identification (RFID) is the wireless use of electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects. The tags contain electronically stored information. A technology that employs a microchip with an antenna that broadcasts its unique identifier and location to receivers.
- 15. RFID Tags Contains two main parts: Silicon chips Antennas Components enable tags to receive and respond to radio frequencies queries from RFID transceivers. Three types by power: Passive Semi-Passive Active
- 16. Passive Have no internal power supply Very Small, Limited Range, Unlimited Life Semi Passive(Battery-assisted passive) Similar to passive tags, with the addition of a small battery Battery powers the integrated circuit Bigger, Longer Range, Limited Life Active Have their own internal power source Many operate at fixed intervals Also called beacons (broadcast own signal) Much larger memories, Longer range
- 17. THANK YOU