Security of computer network system essay

One of my programmer buddies refers to this process as "turd polishing" because, as he says, it doesn't make your code any less smelly in the long run but management might enjoy its improved, shiny, appearance in the short term.

Security of computer network system essay

Timeline of notable computer viruses and worms Early academic work on self-replicating programs[ edit ] The first academic work on the theory of self-replicating computer programs [18] was done in by John von Neumann who gave lectures at the University of Illinois about the "Theory and Organization of Complicated Automata ".

The work of von Neumann was later published as the "Theory of self-reproducing automata". In his essay von Neumann described how a computer program could be designed to reproduce itself. The Reaper program was created to delete Creeper.

On its 50th use the Elk Cloner virus would be activated, infecting the personal computer and displaying a short poem beginning "Elk Cloner: The program with a personality. InFred Cohen published a demonstration that there is no algorithm that can perfectly detect all possible viruses.

However, antivirus professionals do not accept the concept of "benevolent viruses", as any desired function can be implemented without involving a virus automatic compression, for instance, is available under the Windows operating system at the choice of the user. Any virus will by definition make unauthorised changes to a computer, which is undesirable even if no damage is done or intended.

On page one of Dr Solomon's Virus Encyclopaedia, the undesirability of viruses, even those that do nothing but reproduce, is thoroughly explained. Gunn under the title "Use of virus functions to provide a virtual APL interpreter under user control" in A few years later, in FebruaryAustralian hackers from the virus-writing crew VLAD created the Bizatch virus also known as "Boza" viruswhich was the first known virus to target Windows In late the encrypted, memory-resident stealth virus Win Cabanas was released—the first known virus that targeted Windows NT it was also able to infect Windows 3.

The first one to appear on the Commodore Amiga was a boot sector virus called SCA viruswhich was detected in November Users would be required to click on a link to activate the virus, which would then send an email containing user data to an anonymous email addresswhich was later found to be owned by Larose.

Data sent would contain items such as user IP address and email addresses, contacts, website browsing history, and commonly used phrases. Inlarger websites used part of the Win Operations and functions[ edit ] Parts[ edit ] A viable computer virus must contain a search routinewhich locates new files or new disks which are worthwhile targets for infection.

Attheheels.com - The Most Activated Windows Resource

Secondly, every computer virus must contain a routine to copy itself into the program which the search routine locates. Infection mechanism[ edit ] Infection mechanism also called 'infection vector'is how the virus spreads or propagates.

A virus typically has a search routine, which locates new files or new disks for infection. Payload activity might be noticeable e. This life cycle can be divided into four phases: Dormant phase[ edit ] The virus program is idle during this stage.

The virus program has managed to access the target user's computer or software, but during this stage, the virus does not take any action.

The virus will eventually be activated by the "trigger" which states which event will execute the virus, such as a date, the presence of another program or file, the capacity of the disk exceeding some limit or the user taking a certain action e.

Access control - Wikipedia Whether it be a consultant who maintains a home office, or a "road warrior" who gets most of his work done in airports and hotel rooms, employers are recognizing the need for employees to stay connected to the office at all times of day and from all locations. In response to this need, businesses are becoming more interested in telecommuting, which gives employees the flexibility they demand while keeping productivity high.
Tips for Avoiding Computer Crime Exceptional post however I was wanting to know if you could write a litte more on this topic? You have some really good articles and I think I would be a good asset.
Computer Science (CSE) and MCA Seminar Topics PPT PDF Timeline of notable computer viruses and worms Early academic work on self-replicating programs[ edit ] The first academic work on the theory of self-replicating computer programs [18] was done in by John von Neumann who gave lectures at the University of Illinois about the "Theory and Organization of Complicated Automata ". The work of von Neumann was later published as the "Theory of self-reproducing automata".

Not all viruses have this stage. The virus places a copy of itself into other programs or into certain system areas on the disk. The copy may not be identical to the propagating version; viruses often "morph" or change to evade detection by IT professionals and anti-virus software.

Each infected program will now contain a clone of the virus, which will itself enter a propagation phase.attheheels.com gives you the largest range of Windows and Microsoft news that you can get anywhere on the internet.

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The Six Dumbest Ideas in Computer Security. There's lots of innovation going on in security - we're inundated with a steady stream of .

Security of computer network system essay

Telecommuting: Security Policies and Procedures for the "Work-From-Home" Workforce Jessica L. Hirsch Introduction As today’s business environment becomes ever more global, companies are faced with an increasing .

Security of computer network system essay

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Introduction These suggestions are a companion to my separate essay on computer crime in the attheheels.com suggestions are like installing high-security deadbolt locks on doors of an office or home.

The Six Dumbest Ideas in Computer Security