Analysis of Data Remaining on Second Hand ADSL Routers

In theory, an ADSL router can provide an additional layer of security to a wired and wireless network through; access control, wireless encryption, firewall rule sets, and network event logging. An ADSL router may also contain the users’ usage habits and broadband account credentials. However, end-users may be unaware of the intricacies of the security measures available and the potentially confidential information stored on their device. As a result a second hand ADSL router may contain a wealth of user-specific information if not wiped and disposed of in a secure manner. This paper shows the data that was acquired from a selection of second hand ADSL routers purchased during the first quarter of 2011. From the data acquired and analysed, individuals are not removing their personally identifiable information and are leaving confidential data which may lead to detrimental outcomes if misused. The paper also shows that end-user applied security on these devices was alarmingly low. Thus many consumers may fall victim to new and emergent Internet based crimes if the full security capabilities of their ADSL router are not applie

Analysis of Data Remaining on Second Hand ADSL Routers

In theory, an ADSL router can provide an additional layer of security to a wired and wireless network through; access control, wireless encryption, firewall rule sets, and network event logging. An ADSL router may also contain the users’ usage habits and broadband account credentials. However, end-users may be unaware of the intricacies of the security measures available and the potentially confidential information stored on their device. As a result a second hand ADSL router may contain a wealth of user-specific information if not wiped and disposed of in a secure manner. This paper shows the data that was acquired from a selection of second hand ADSL routers purchased during the first quarter of 2011. From the data acquired and analyzed, individuals are not removing their personally identifiable information and are leaving confidential data which may lead to detrimental outcomes if misused. The paper also shows that end-user applied security on these devices was alarmingly low. Thus many consumers may fall victim to new and emergent Internet based crimes if the full security capabilities of their ADSL router are not applie

DSL-based triple-play services

This research examines the triple play service based on the ADSL technology. The voice over IP will be checked and combined with the internet data by two monitoring programs in order to examine the performance that this service offers and then will be compared with the usual method of internet connection.This research examines the triple play service based on the ADSL technology. The voice over IP will be checked and combined with the internet data by two monitoring programs in order to examine the performance that this service offers and then will be compared with the usual method of internet connection.

Inside Dropbox: Understanding Personal Cloud Storage Services

Personal cloud storage services are gaining popularity. With a rush of providers to enter the market and an increasing of- fer of cheap storage space, it is to be expected that cloud storage will soon generate a high amount of Internet traffic. Very little is known about the architecture and the perfor- mance of such systems, and the workload they have to face. This understanding is essential for designing efficient cloud storage systems and predicting their impact on the network. This paper presents a characterization of Dropbox, the leading solution in personal cloud storage in our datasets. By means of passive measurements, we analyze data from four vantage points in Europe, collected during 42 consecu- tive days. Our contributions are threefold: Firstly, we are the first to study Dropbox, which we show to be the most widely-used cloud storage system, already accounting for a volume equivalent to around one third of the YouTube traffic at campus networks on some days. Secondly, we characterize the workload typical users in different environments gener- ate to the system, highlighting how this reflects on network traffic. Lastly, our results show possible performance bot- tlenecks caused by both the current system architecture and the storage protocol. This is exacerbated for users connected far from control and storage data-center

Network Factors Influencing Packet Loss in Online Games

In real-time communications it is often vital that data arrive at its destination in a timely fashion. Whether it is the user experience of online games, or the reliability of tele-surgery, a reliable, consistent and predictable communications channel between source and destination is important. However, the Internet as we know it was designed to ensure that data will arrive at the desired destination instead of being designed for predictable, low-latency communication. Data traveling from point to point on the Internet is comprised of smaller packages known as packets. As these packets traverse the Internet, they encounter routers or similar devices that will often queue the packets before sending them toward their destination. Queued packets introduces a delay that depends greatly on the router configuration and the number of other packets that exist on the network. In times of high demand, packets may be discarded by the router or even lost in transmission. Protocols exist that retransmit lost packets, but these protocols introduce additional overhead and delays - costs that may be prohibitive in some applications. Being able to predict when packets may be delayed or lost could allow applications to compensate for unreliable data channels. In this thesis I investigate the effects of cross traffic and router configuration on a low bandwidth traffic stream such as that which is common in games. The experiments investigate the effects of cross traffic packet size, bit-rate, inter-packet timing and protocol used. The experiments also investigate router configurations including queue management type and the number of queues. These experiments are compared to real-world data and a mitigation strategy, where n previous packets are bundled with each new packet, is applied to both the simulated data and the real-world captures. The experiments indicate that most of the parameters explored had an impact on the packet loss. However, the real world data and simulated data differ and would require additional work to attempt to apply the lessons learned to real world applications. The mitigation strategy appeared to work well, allowing 90\% of all runs to complete without data loss. However, the mitigation strategy was implemented analytically and the actual implementation and testing has been left for future work

An Australian Perspective on the Challenges for Computer and Network Security for Novice End-Users

A good portion of today\u27s investigations include, at least in part, an examination of the user\u27s web history. Although it has lost ground over the past several years, Microsoft\u27s Internet Explorer still accounts for a large portion of the web browser market share. Most users are now aware that Internet Explorer will save browsing history, user names, passwords and form history. Consequently some users seek to eliminate these artifacts, leaving behind less evidence for examiners to discover during investigations. However, most users, and probably a good portion of examiners are unaware Automatic Crash Recovery can leave a gold mine of recent browsing history in spite of the users attempts to delete historical artifacts. As investigators, we must continually be looking for new sources of evidence; Automatic Crash Recovery is it

The challenges of seizing and searching the contents of Wi-Fi devices for the modern investigator

To the modern law enforcement investigator, the potential for an offender to have a mobile device on his or her person, who connects to a Wi-Fi network, may afford evidence to place them at a scene, at a particular time. Whilst tools to interrogate mobile devices and Wi-Fi networks, have undergone significant development, little research has been conducted with regards to interrogating Wi-Fi routers and the evidence they may contain. This paper demonstrates that multiple inhibiting factors exist for forensic investigators when attempting to extract data from Wi-Fi routers at the scene. Data volatility means the Wi-Fi router cannot be powered down without losing a substantial quantity of data. Third party Wi-Fi enabled devices may connect to or interact with the access point after an event occurs. Multiple models exist, with varying internal architectures, operating systems, and external interfaces. This paper presents steps and considerations for at scene seizure of Wi-Fi devices for law enforcement, to ensure maximum digital forensic evidence is collected. It also lists a series of recommendations to the manufacturers of Wi-Fi devices to facilitate a standardised mechanism to collect forensic evidence, thus making future acquisitions easier and time efficient

An Australian Perspective on the Challenges for Computer and Network Security for Novice Endusers

It is common for end-users to have difficulty in using computer or network security appropriately and thus have often been ridiculed when misinterpreting instructions or procedures. This discussion paper details the outcomes of research undertaken over the past six years on why security is overly complex for endusers. The results indicate that multiple issues may render end-users vulnerable to security threats and that there is no single solution to address these problems. Studies on a small group of senior citizens has shown that educational seminars can be beneficial in ensuring that simple security aspects are understood and used appropriately