Syed Ubaid Ali Jafri Lecture on Information Technology

Distruptionware is a form of Ransomware. This presentation covers how to protect your company from it.

CYBER ATTACK INTRODUCTION,TYPES OF CYBER ATTACK,DOS ATTACK,MAJOR CYBER ATTACK IN INDIA,PREVENTION TIPS

WannaCry Ransomware explained in details, a better understanding about Ransomware and how to stay protected from it.

This document discusses various security threats to web applications such as cross-site scripting, SQL injection, denial-of-service attacks, and brute force attacks. It provides details on each threat, including how they occur and methods of prevention. Defense tactics covered include input validation, account lockouts, CAPTCHAs, encryption, access restrictions, and server hardening techniques.

Security is a major concern for organizations and individuals as information has become more valuable. The need for security has existed since information first became important. While firewalls and antivirus software provide some protection, they do not make an organization fully secure. Security involves processes for prevention, detection, reaction, and forensics. It is difficult to implement security perfectly due to costs, user resistance, evolving threats, and time/budget constraints for security teams. Hackers use various techniques like information gathering, password cracking, viruses, denial of service attacks, sniffing, and system exploits to compromise targets. Organizations implement defenses like firewalls, intrusion detection, honeypots, anti-sniffing measures, antivirus software, security awareness

Financial services organizations are prime targets for cyber criminals. They must take extreme care to protect customer data, while also ensuring high levels of network availability to allow for 24/7 access to critical financial information. Additionally, industry consolidation has created large, heterogeneous network environments within large financial institutions, making it difficult to ensure that networks have the necessary visibility and protection to prevent a devastating security breach. By leveraging NetFlow from existing network infrastructure, financial services organizations can achieve comprehensive visibility across even the largest, most complex networks. The ability to quickly detect a wide range of potentially malicious activity helps prevent damaging data breaches and network disruptions. Attend this informational webinar, conducted by Lancope’s Director of Security Research, Tom Cross, to learn: How NetFlow can help quickly uncover both internal and external threats How pervasive network insight can accelerate incident response and forensic investigations How to substantially decrease enterprise risks

This document summarizes Symantec's enterprise security solutions, including vulnerability management, firewalls, intrusion detection, virus protection, and managed security services. It discusses why security is important for businesses, common security threats, and how Symantec's layered approach addresses these threats through technologies like firewalls, VPNs, antivirus software, and vulnerability scanning.

It is possible to create a comprehensive attack surface of any organizations just with open data available on the public internet It is possible to search vulnerable targets and compromise the targets. The organizations can be compromised without any RCE vulnerability. It is possible to create inhouse team to continuously monitor your attack surface and fix flaws before attackers find them.

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.

Security Testing involves testing applications and systems to ensure security and proper functionality. It includes testing input validation, internal processing, output validation, and more. Common types of security testing are security auditing, vulnerability scanning, risk assessment, ethical hacking, and penetration testing. The OWASP Top 10 includes SQL injection, cross-site scripting, and broken authentication and session management as common vulnerabilities.

Cross-site scripting (XSS) is the most prevalent web application security vulnerability. XSS allows attackers to inject client-side scripts to compromise user data or bypass access controls. Contextual output encoding, input validation, and emerging defensive technologies like content security policy promise to reduce XSS occurrences. SQL injection is another common threat that exploits code injection to access databases. Memory corruption from buffer overflows or faulty memory management can enable arbitrary code execution attacks. Cross-site request forgery tricks users into unknowingly submitting malicious requests. Data breaches unintentionally release secure information, requiring notification laws.

APNIC Security Specialist Jamie Gillespie presents on DDoS Attack Prevention at KHNOG 3, held online on 4 December 2021.

The document provides an overview of information security concepts and threats. It discusses how security is difficult to implement due to costs, user resistance, and sophisticated criminals. The document then outlines various hacking techniques like information gathering, social engineering, sniffing, and denial of service attacks. It concludes by describing defensive security measures for organizations, including firewalls, intrusion detection, honeypots, antivirus software, user awareness training, and penetration testing.

Le Centre des Opérations de Sécurité est une division, dans une entreprise, qui assure la sécurité de l'organisation et surtout le volet sécurité de l'information. Technology • For SOC Team members, technology is their weapon, they use it to collect different type of logs (login events, activities etc). • Team comprises of people uses least amount of resources to get good visibility into active and emerging threats. • Continuous consolidation of technologies and effectively organizing team is required Host based Defence • Host includes physical / virtual OS that are allocated to the employee of organization • Enterprise majorly have the following OS’s: • Windows • Linux • Mac • Tools like OSQuery (cross-platform), Sysmon (Windows) etc can be used to collect and transmit logs for analysing performance of hosts devices Host Firewall - Windows • Defender host firewall present in Win Vista, 7, 8, 10, 11 & server edition. • It helps secure the devices by in-bound & out-bound rules. • The rules states which network traffic can go in and out from the device • Inbound Rules : Network traffic coming from the external device. Ex : Someone tries to connect to FTP Server on host machine. • Outbound rules : Network traffic originating from the host device. Ex : Host machine tries to connect to a web server. • Connection Rules : Used to filter the network traffic going in and out the host device •Host Firewall – iptables • Firewall utility that comes in-built in most Linux operating systems. • It is a command line utility, that filters network traffic going-in or going-out of the system. • Iptables has 3 different chains, namely: • Input : Controls incoming connections. Ex : SSH into host machine with iptables enabled • Output : Controls outgoing connections. Ex : Sending ICMP packets to a destination • Forward : Helpful during routing scenarios, utilizes traffic forwarding utilities to sent data to destined address • Connection Specific Responses • ACCEPT : Allow the connection • DROP : Drop the connection without sending any errors • REJECT : Drop the connection but send back an error response • Block connection from a range of IP address Anti-Virus • In General Terms, it is a computer program used to prevent, detect and remove malicious s/w. • They continuously scan incoming files (coming to system from everywhere) and if any anomaly is detected, it is quarantined / removed. • The Landscape of security has moved a lot from focusing only a single device to end-point devices like Cell-phone, Enterprise laptop, Tablet, Servers, Computers etc. • End Point Security protects network, using a combination of FireWall, AntiVirus, Anti-Malware etc. • They are explicitly designed for enterprise clients to protect all their endpoints devices like servers, computers, mobile etc • Understanding Naming Context, it is clear that EDR is a solution that continuously monitors, stores endpoint-devices behaviour to detect and block suspicious / malicious act

1) Ethical hacking involves identifying security vulnerabilities in systems by simulating techniques used by attackers. It typically involves footprinting, scanning, gaining access, and maintaining access to target systems. 2) Social engineering techniques like pretending to help retrieve forgotten passwords can be used to gain unauthorized access to user accounts. 3) Trojan viruses allow remote access and control of infected systems, enabling hackers to maintain long-term unauthorized access covertly. Finding unexpectedly open ports or information flowing from an organization could indicate a Trojan infection.