William Stallings, Cryptography and Network Security 3/e
... of the screened subnet to the Internet; therefore, the internal network is invisible to the Internet. Similarly, the inside router advertises only the existence of the screened subnet to the internal network; therefore, the systems on the inside network cannot construct direct routes to the ...
... of the screened subnet to the Internet; therefore, the internal network is invisible to the Internet. Similarly, the inside router advertises only the existence of the screened subnet to the internal network; therefore, the systems on the inside network cannot construct direct routes to the ...
Lecture 12
... a firewall is a host that mediates access to a network, allowing and disallowing certain type of access based on a configured security policy ...
... a firewall is a host that mediates access to a network, allowing and disallowing certain type of access based on a configured security policy ...
PowerPoint
... and Authority Servers • Avoid serving stale zones authoritatively • Avoiding exposing nameservers to cache poisoning attacks is even more important when the potential client population is large, and the answers are marked ...
... and Authority Servers • Avoid serving stale zones authoritatively • Avoiding exposing nameservers to cache poisoning attacks is even more important when the potential client population is large, and the answers are marked ...
DNS Session 5 Additional Topics
... and Authority Servers • Avoid serving stale zones authoritatively • Avoiding exposing nameservers to cache poisoning attacks is even more important when the potential client population is large, and the answers are marked ...
... and Authority Servers • Avoid serving stale zones authoritatively • Avoiding exposing nameservers to cache poisoning attacks is even more important when the potential client population is large, and the answers are marked ...
Survey of online attacks on E-Commerce sites
... Web based attacks are considered to be the greatest threat to the online business as it is related to confidentiality, availability, and integrity. The motive behind e-commerce attack is significantly different then other attacks; Web based attacks focus on an application itself and functions on lay ...
... Web based attacks are considered to be the greatest threat to the online business as it is related to confidentiality, availability, and integrity. The motive behind e-commerce attack is significantly different then other attacks; Web based attacks focus on an application itself and functions on lay ...
Addressing security threats and vulnerabilities
... – Intermediate: programmers creating exploits from the vulnerabilities – Novice: script kiddies – What motivates them? ...
... – Intermediate: programmers creating exploits from the vulnerabilities – Novice: script kiddies – What motivates them? ...
Intrusion Detection Prevention Systems
... events occurring within that host, such as monitoring network traffic (only for that host), system logs, running processes, file access and modification, and system and application configuration changes. They often use a combination of attack signatures and knowledge of expected or typical behavior ...
... events occurring within that host, such as monitoring network traffic (only for that host), system logs, running processes, file access and modification, and system and application configuration changes. They often use a combination of attack signatures and knowledge of expected or typical behavior ...
www.uob.edu.pk
... • This has significantly changed the resources available and motivation behind the rise of malware leading to development of a large underground economy involving the sale of attack kits, access to compromised hosts, and to stolen information ...
... • This has significantly changed the resources available and motivation behind the rise of malware leading to development of a large underground economy involving the sale of attack kits, access to compromised hosts, and to stolen information ...
Lecture 11
... Idea: auditors want to detect violations of policy, which provides a set of constraints that the set of possible actions must satisfy So, audit functions that may violate the ...
... Idea: auditors want to detect violations of policy, which provides a set of constraints that the set of possible actions must satisfy So, audit functions that may violate the ...
Lecture 10
... Idea: auditors want to detect violations of policy, which provides a set of constraints that the set of possible actions must satisfy So, audit functions that may violate the ...
... Idea: auditors want to detect violations of policy, which provides a set of constraints that the set of possible actions must satisfy So, audit functions that may violate the ...
Lecture 10
... Idea: auditors want to detect violations of policy, which provides a set of constraints that the set of possible actions must satisfy So, audit functions that may violate the ...
... Idea: auditors want to detect violations of policy, which provides a set of constraints that the set of possible actions must satisfy So, audit functions that may violate the ...
Presentation on Security Flaws in Windows XP
... Windows XP, this technique grants the user unrestricted access to the computer physical access to a PC for a long enough period of time install keystroke logging software to steal passwords or backdoor programs to grant themselves unrestricted remote access ...
... Windows XP, this technique grants the user unrestricted access to the computer physical access to a PC for a long enough period of time install keystroke logging software to steal passwords or backdoor programs to grant themselves unrestricted remote access ...
18_DataCenter_Security_Overview
... The difference between viruses and worms is the way they auto-replicate, Worms are also self-replicating programs that propagate without any human ...
... The difference between viruses and worms is the way they auto-replicate, Worms are also self-replicating programs that propagate without any human ...
18_DataCenter_Security_Overview
... The difference between viruses and worms is the way they auto-replicate, Worms are also self-replicating programs that propagate without any human ...
... The difference between viruses and worms is the way they auto-replicate, Worms are also self-replicating programs that propagate without any human ...
A Brief Overview of VoIP Security By John McCarron Voice of
... and endpoints such as phones. There three types of servers. The location server maintains a database of the location of all endpoints. The proxy server passes the calls between networks while the registrar server authenticates all traffic. SIP can use HTTP, SMTP, IPsec and S/MIME, Secure/Multipurpos ...
... and endpoints such as phones. There three types of servers. The location server maintains a database of the location of all endpoints. The proxy server passes the calls between networks while the registrar server authenticates all traffic. SIP can use HTTP, SMTP, IPsec and S/MIME, Secure/Multipurpos ...
Ch06-Firewalls
... of a legitimate user to gain access to a computer system or network – Misfeasor: a legitimate user who performs actions he is not authorized to do – Clandestine user: a user who tries to block or cover up his actions by deleting audit files and/or system logs ...
... of a legitimate user to gain access to a computer system or network – Misfeasor: a legitimate user who performs actions he is not authorized to do – Clandestine user: a user who tries to block or cover up his actions by deleting audit files and/or system logs ...
Compensation 101 - Christopher S. Foree
... XSS (cont.) B. Today’s web applications often store quite a lot of information in the client’s browser (e.g. cookies, cache) C. Since XSS relies on code that gets executed on a client’s browser, client-side data can be manipulated and hijacked, and the user can be redirected to malicious websites ...
... XSS (cont.) B. Today’s web applications often store quite a lot of information in the client’s browser (e.g. cookies, cache) C. Since XSS relies on code that gets executed on a client’s browser, client-side data can be manipulated and hijacked, and the user can be redirected to malicious websites ...
System Security - Wright State engineering
... Multifaceted tactical information warfare applied in a broad orchestrated manner to disrupt a major U.S. military mission. Large organized groups or nation-states intent on overthrowing the United States. ...
... Multifaceted tactical information warfare applied in a broad orchestrated manner to disrupt a major U.S. military mission. Large organized groups or nation-states intent on overthrowing the United States. ...
Preparation Identification Containment
... connections from the compromised computer; - Select what kind of files can be lost / stolen and restrict the access for confidential files; - Create fake documents with watermarking that could be use as a proof of theft; - Notify targeted business users about what must be done and what is forbidden; ...
... connections from the compromised computer; - Select what kind of files can be lost / stolen and restrict the access for confidential files; - Create fake documents with watermarking that could be use as a proof of theft; - Notify targeted business users about what must be done and what is forbidden; ...
What is a trojan?
... Detection is difficult. Most trojans are designed to run invisible to the victim by removing itself from the process list and hiding its system “footprint”. A successful trojan attack opens a virtual channel to the victim’s file system, registry, process list, service list, and other OS structures. ...
... Detection is difficult. Most trojans are designed to run invisible to the victim by removing itself from the process list and hiding its system “footprint”. A successful trojan attack opens a virtual channel to the victim’s file system, registry, process list, service list, and other OS structures. ...
Annex 1
... employees) could pose a potential threat to an institution's information security. The internet provides different sources of information on known security flaws in hardware and software. Using almost any search engine on the internet, average internet users can quickly find information describing h ...
... employees) could pose a potential threat to an institution's information security. The internet provides different sources of information on known security flaws in hardware and software. Using almost any search engine on the internet, average internet users can quickly find information describing h ...
Ch10 - Protection Mechanism
... – Commonly used in conjunction with a second or internal filtering router - or proxy server – Implemented for specific protocols ...
... – Commonly used in conjunction with a second or internal filtering router - or proxy server – Implemented for specific protocols ...
Presentation
... because they are virtually impossible to detect and can be inserted almost anywhere. This makes them a favorite weapon in the hacker's arsenal. On TCP/IP networks, where they sniff packets, they're often called packet sniffers. ...
... because they are virtually impossible to detect and can be inserted almost anywhere. This makes them a favorite weapon in the hacker's arsenal. On TCP/IP networks, where they sniff packets, they're often called packet sniffers. ...
chapter 3
... (DDoS) attack has not only increased in size, but also reached a new level of sophistication. DDoS attacks have recently caused a lot of problems for organizations; in September, the sites of several financial institutions were disrupted as a result of such operations. Prolexic found that many of th ...
... (DDoS) attack has not only increased in size, but also reached a new level of sophistication. DDoS attacks have recently caused a lot of problems for organizations; in September, the sites of several financial institutions were disrupted as a result of such operations. Prolexic found that many of th ...
Denial-of-service attack
In computing, a denial-of-service (DoS) attack is an attempt to make a machine or network resource unavailable to its intended users, such as to temporarily or indefinitely interrupt or suspend services of a host connected to the Internet. A distributed denial-of-service (DDoS) is where the attack source is more than one–and often thousands–of unique IP addresses.Criminal perpetrators of DoS attacks often target sites or services hosted on high-profile web servers such as banks, credit card payment gateways; but motives of revenge, blackmail or activism can be behind other attacks.