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At least 19 recordsLinked to original sources
PubMed2003

The myth of secure computing.

Few senior executives pay a whole lot of attention to computer security. They either hand off responsibility to their technical people or bring in consultants. But given the stakes involved, an arm's-length approach is extremely unwise. According to industry estimates, security breaches affect 90% of all businesses every year and cost some $17 billion. Fortunately, the authors say, senior executives don't need to learn about the more arcane aspects of their company's IT systems in order to take a hands-on approach. Instead, they should focus on the familiar task of managing risk. Their role should be to assess the business value of their information assets, determine the likelihood that those assets will be compromised, and then tailor a set of risk abatement processes to their company's particular vulnerabilities. This approach, which views computer security as an operational rather than a technical challenge, is akin to a classic quality assurance program in that it attempts to avoid problems rather than fix them and involves all employees, not just IT staffers. The goal is not to make computer systems completely secure--that's impossible--but to reduce the business risk to an acceptable level. This article looks at the types of threats a company is apt to face. It also examines the processes a general manager should spearhead to lessen the likelihood of a successful attack. The authors recommend eight processes in all, ranging from deciding how much protection each digital asset deserves to insisting on secure software to rehearsing a response to a security breach. The important thing to realize, they emphasize, is that decisions about digital security are not much different from other cost-benefit decisions. The tools general managers bring to bear on other areas of the business are good models for what they need to do in this technical space.

Administrative Personnel↗
PubMedDate not supplied

Personal computer security: part 1. Firewalls, antivirus software, and Internet security suites.

Personal computer (PC) security in the era of the Health Insurance Portability and Accountability Act of 1996 (HIPAA) involves two interrelated elements: safeguarding the basic computer system itself and protecting the information it contains and transmits, including personal files. HIPAA regulations have toughened the requirements for securing patient information, requiring every radiologist with such data to take further precautions. Security starts with physically securing the computer. Account passwords and a password-protected screen saver should also be set up. A modern antivirus program can easily be installed and configured. File scanning and updating of virus definitions are simple processes that can largely be automated and should be performed at least weekly. A software firewall is also essential for protection from outside intrusion, and an inexpensive hardware firewall can provide yet another layer of protection. An Internet security suite yields additional safety. Regular updating of the security features of installed programs is important. Obtaining a moderate degree of PC safety and security is somewhat inconvenient but is necessary and well worth the effort.

Computer Security↗
PubMed1993

Computer security.

Many factors are contributing to any increased awareness of and interest in computer security. This article has described two aspects of computer security, identification of users and cryptography as a tool for data security. We looked at a number of ways to verify the identity of a user, including things a person knows, has, or is. Combinations of techniques were considered as a means of increasing security. Next, we looked at some simple examples of cryptosystems, including the rail fence cipher (a transposition technique), and the Caesar cipher (a substitution technique). Two computer systems were described, DES (a product cipher), and RSA (a cipher based on exponentiation and the mod operation).

Computer Security↗
PubMed1986

Computer security. An introduction for the medical practitioner.

Effective security will ensure that a computer functions properly, that its information is accurate, and that its use does not subject its owners and operators to legal risk. Although problems with intentional violations of computer security have received the most press and public attention, for most computer users the greatest threat to effective and trouble-free use of their equipment can be traced to poor equipment handling and inadequate attention to the mundane tasks of computing. Proper attention to maintenance of equipment and information is as effective in ensuring the proper functioning of computers as is regular maintenance of a car, and no more complicated.

Computers↗
PubMed2003

Improving computer security by health smart card.

The University hospitals of Strasbourg have worked for several years on the computer security of the medical data and have of this fact be the first to use the Health Care Professional Smart Card (CPS). This new tool must provide security to the information processing systems and especially to the medical data exchanges between the partners who collaborate to the care of the Beyond the purely data-processing aspects of the functions of safety offered by the CPS, safety depends above all on the practices on the users, their knowledge concerning the legislation, the risks and the stakes, of their adhesion to the procedures and protections installations. The aim of this study is to evaluate this level of knowledge, the practices and the feelings of the users concerning the computer security of the medical data, to check the relevance of the step taken, and if required, to try to improve it. The survey by questionnaires involved 648 users. The practices of users in terms of data security are clearly improved by the implementation of the security server and the use of the CPS system, but security breaches due to bad practices are not however completely eliminated. That confirms that is illusory to believe that data security is first and foremost a technical issue. Technical measures are of course indispensable, but the greatest efforts are required after their implementation and consist in making the key players [2], i.e. users, aware and responsible. However, it must be stressed that the user-friendliness of the security interface has a major effect on the results observed. For instance, it is highly probable that the bad practices continued or introduced upon the implementation of the security server and CPS scheme are due to the complicated nature or functional defects of the proposed solution, which must therefore be improved. Besides, this is only the pilot phase and card holders can be expected to become more responsible as time goes by, along with the gradual national implementation of the CPS project and the introduction of new functions using electronic signatures and encryption.

Access to Information↗
PubMed1987

From tangled webs to network integrity: computer security in hospital management. Part II.

This article is the second of two on the subject of computer security in hospital management in the first part, the authors dramatized the need for not only information security awareness but also the need for implementation of security measures to protect valuable information. This second article provides an overview of the components of a good computer security plan, contains a brief explanation of some of the new network security technology available today, and gives the reader several sources that can provide further information on information security.

Computer Communication Networks↗
PubMedDate not supplied

Common sense and computer security.

The age of information so frequently described and anticipated in "gee-whiz" language has a darker side. As recent newspaper stories and other media attention show, unauthorized tampering with computer data banks and computer programs is on the rise. And the problem will grow worse with the proliferation of microcomputers, word processors, and data networks and with the swelling ranks of people familiar with their use. Probing beyond the conventional legislative and technological solutions to computer security problems, the authors look at what managers can do to preserve the integrity of their companies' information systems. While it is no longer possible simply to delegate responsibility for computer security to data processing managers, senior managers should not rely on expensive and complex solutions, according to these authors. They argue for simple, commonsense measures and advise how auditing and control systems can be revitalized to help detect security problems before they become serious.

Computers↗
PubMed1978

Management policies and procedures needed for effective computer security.

Although many security issues are controlled by legislative ruling and social standards, or are constrained by technological limitations, many other important matters of operational computer security are directly or indirectly under managerial control. The author argues that the necessary control policies and procedures will become increasingly critical as our reliance upon computer-based information systems continues to increase. This article presents a comprehensive framework for understanding the various aspects of computer security. Through this framework, those areas controllable by management are identified, and possible actions are proposed.

Attitude↗
PubMed1999

Aspects of computer security: a primer.

As health care organizations continue on the path toward total digital operations, a topic often raised but not clearly understood is that of computer security. The reason for this is simply the vastness of the topic. Computers and networks are complex, and each service offered is a potential security hole. This article describes for the lay person the fundamental points of computer operation, how these can be points attacked, and how these attacks can be foiled--or at least detected. In addition, a taxonomy that should aid system administrators to evaluate and strengthen their systems is described.

Computer Communication Networks↗
PubMedDate not supplied

Informatics in Radiology (infoRAD): personal computer security: part 2. Software Configuration and file protection.

Proper configuration of software security settings and proper file management are necessary and important elements of safe computer use. Unfortunately, the configuration of software security options is often not user friendly. Safe file management requires the use of several utilities, most of which are already installed on the computer or available as freeware. Among these file operations are setting passwords, defragmentation, deletion, wiping, removal of personal information, and encryption. For example, Digital Imaging and Communications in Medicine medical images need to be anonymized, or "scrubbed," to remove patient identifying information in the header section prior to their use in a public educational or research environment. The choices made with respect to computer security may affect the convenience of the computing process. Ultimately, the degree of inconvenience accepted will depend on the sensitivity of the files and communications to be protected and the tolerance of the user.

Computer Security↗