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2121 Uppsatser om Computer security - Sida 1 av 142
Webbsäkerhet och vanliga brister - kunskapsläget bland utvecklare
This bachelor thesis looks at developers knowledge about web security both
regarding their own view on their knowledge and their actual knowledge about
vulnerabilities and how you mitigate against them. Web developers knowledge
regarding web security are becoming more and more important as more
applications and services moves to the web and more and more items become
connected to the internet. We are doing this by conducting a survey among
developers that are currently studying in the field or are working in the field
to get a grip on how the knowledge is regarding the most common security
concepts. What we saw was that the result varies between the different concepts
and many lack much of the knowledge in web security that is getting
increasingly more important to have..
En undersökning i datasäkerhet för hemanvändare - Är det nödvändigt att använda brandvägg?
The emphasize of this study is to evaluate security issues for home users
having a personal computer connected to the Internet. It focus on the usage of
advantages and disadvantages when using a firewall while connected to the
Internet.
The hypothesis is that it gives a better protection to install and use a
firewall compared not to do so, due to security flaws in the operating system.
The prediction was tested on a home user's personal computer. The testwork was
divided into two major tests, each of them performed with, respectively
without, a firewall. These major tests were divided into five smaller semi
tests. The first semitest without a firewall suffered from a virus or worm
attack resulting in loss of data and log files.
peer2peer - hur dyrt är gratis?
Detta arbete behandlar de tilläggsprogram som, på senaste tid, börjat spridas
med bland annat peer2peerverktyg. Dessa tilläggsprogram, som brukar benämnas
spyware alternativt adware, misstänks för att samla in personlig information,
så som e-mailadresser och lösenord. Det föreligger en risk att informationen
sedan säljs vidare eller används för att exempelvis rikta reklam....
Säkerhetsklassificering av IT-system på Fläkt Woods AB
This report presents a method for modelling a computer system from a security perspective. The questions that are going to be treated are:? What defines a secure system and how does the company relate to these factors?? What are the threats today based on hardware/software, human factors and company routines/policies?? What measures should be taken for the organisation to reach a higher level of security for their systems?? How do we develop a method for classification of security and what components should it contain?? What changes are reasonable and necessary with the respect to the company?s resources?The report has been done through interviews and analysis of existing systems on Fla?kt Woods AB. From analysis of material, the aspects judged relevant to the subject and to the company?s needs, have been compiled to a document.
Bluetooth and security
Detta arbete behandlar hur Bluetooth fungerar samt säkerheten kring Bluetooth
och några allmänt tillgängliga attack verktyg.
Syftet med uppsatsen är att försöka fastställa hur säkert Bluetooth är i dagens
läge. Bluetooth har länge varit tillgängligt för att utbyta data över korta
avstånd. Därför har man valt att implementera det i kommunikationsenheter som
mobiltelefoner och laptops med mera. Det har funnits en debatt om hur säkert
Bluetooth är. För att kunna genomföra denna undersökning så har vi satt oss in
i hur Bluetooth fungerar, vilka allmänt tillgängliga attacker och
implementationer av dessa, som finns.
Säkerhetshot och lösningar för privatpersoner med bredband
As more and more people gain access to broadband in their properties, the
security threats get bigger. A lot more people also have computers that they
carry home from work where they store important information concerning the
company. The information stored on theese computers can be very easy to
retrieve if you have the will and the skill to do it. Very few people have any
knowledge how to protect themselves from theese threats..
En undersökning i datasäkerhet för hemanvändare : Är det nödvändigt att använda brandvägg?
The emphasize of this study is to evaluate security issues for home users having a personal computer connected to the Internet. It focus on the usage of advantages and disadvantages when using a firewall while connected to the Internet. The hypothesis is that it gives a better protection to install and use a firewall compared not to do so, due to security flaws in the operating system. The prediction was tested on a home user's personal computer. The testwork was divided into two major tests, each of them performed with, respectively without, a firewall.
Requirement Specification for Information Security to Health Systems, Case Study - IMIS
During 2001-2002 a prototype, IMIS (Integrated Mobile Information System) was
developed at BTH (Blekinge University of Technology) to demonstrate how mobile
IT-systems can be used in healthcare. The prototype was based on the activity
theory of Engeström.
An ongoing project started in spring 2003. The purpose of the project is
further development of IMIS with special focus in the diabetes healthcare.
Participants in the project are scientists and students at BTH, ALMI
Företagspartner, Blekinge FoU-enhet, Barndiabetesförbundet Blekinge, Blekinge
Diabetesförening, Vårdcentralen Ronneby and Vårdcentralen Sölvesborg.
Säkerhet och integritet i närfältskommunikation
Context. In today?s society we use smart cards in many areas, NFC is a smart
card technology that allows contactless interaction between a reader and the
tag, the tag is often in the form of a card. NFC can be used for various
payment methods or as access card to a building which makes life easier. In
previous studies, the technique has proven to be weak to attacks using an NFC
reader connected to a computer.
IT-säkerhetspolicy ? efterlevs den av anställda?
ABSTRACT
The main purpose of IT security policies is to protect companies against
intrusion and unwanted spread of information. Statistics show that IT related
crimes tend to increase and because of that it is important, from the company?s
side of view, to be well prepared. The IT security policy is an important part
of that preparation.
A lot of the crimes related to IT can be deduced indirectly to employees at the
companies where the crime takes place.
Säkra kommunikationskanaler i en distribuerad heterogen miljö
The systems environments of today are often distributed and heterogeneous. These kind of systems have several advantages but also disadvantages. One problem is how to keep them secure.The security problems in these environments are mainly due to the communication between the connected computers. It is relatively easy to tap these communication channels from information. There is also a need for the possibility to secure these channels from modification of sent information and to be able to verify the sender and receiver of information in a secure manner.
Är handdatorer säkra nog för hälso- och sjukvården?
The aim of this report is to discuss Computer security in handheld computers and to find out the appropriate security level that must be implemented to be able to use handheld computers within the Swedish healthcare system. Most healthcare centers are using some kind of electronic journals for their patient´s data today, but there are still a number of clinics that are usingthe old paper-system. On a few places in Sweden the use of handheld computers at the clinics has already started, but in the United States the use of handheld computers in the medical area is already widespread and from this we can see a lot of different situations where it is useful and effective to work with handheld computers. The security demands on patient´s journals are high and regulated in both Swedish law and regulations from the National Swedish Board of Health and Welfare. The law does not have any substantial demands, but states that there should be an adequate security level based on the nature of the information and the costs.
HAVECA-modellen - En metod för att fortlöpande säkra ett internt nätverk mot tredjepart
This thesis will address a problem concerning availability of information
systems at an enterprise within the financial sector and its external
suppliers, so called trusted third party. The information system resides on the
internal network of the enterprise and must be available to both employees of
the enterprise and the trusted third party simultaneously. This contradicts the
company policy which
disallows third parties access to the internal network. The HAVECA-model
introduced in this thesis provides a framework of methods, each solving a sub
problem identified in the model. The identified methods are hardening,
verification, control and assurance, together supplying a method for
continuously securing the internal network against a trusted third party.
Säkerhet i smarttelefoner : En jämförelsestudie mellan bärbara datorer och smarttelefoner i verksamheter
Smartphones have become more common as business tools within the workplace. With its many features and great flexibility, the smartphone has stormed the business world and become an alternative or complement to the laptop. As these mobile units' popularity has increased, the interest of businesses to invest in this new technology has increased, but has security kept up with the technology developments?This study aims to conduct a study to see if the companies in the IT industry have the same safety awareness for smart phones to laptops.The study shows that companies have greater safety awareness and higher safety requirements for laptops than smartphones. Meanwhile, both end-users and management are well aware of the risks and threats that the smartphone is facing..
Vägen mot säkerhet - får alla gå med? En kritisk, feministisk analys av det traditionella säkerhetsbegreppet.
In this essay I analyze the concepts security and security policy from a critical, feministic point of view. The traditional way of thinking security is state-centred and narrow with its military oriented threatening pictures and solutions.I advocate that the two concepts need a more feministic and holistic approach to be able to cope with the threats of our time and include the security for women explicitly.To suggest how this can be done I introduce a model; security-sphere, which should be seen as a way to constructively connect my objections to the existing research with a new approach to security problems. The security-sphere is based on two analytical parts; the private security sub-sphere and the public security sub-sphere, in order to make new images of security problems visible.It is a fact that most of the threats against women specifically, take place in the private sphere where no traditional analytical tools reach in - these threats have not been seen as 'real' security problems. My aim is therefore to integrate these issues into the agenda of security policy..