Showing posts with label best internet security. Show all posts
Showing posts with label best internet security. Show all posts

Security: The Hardware Advantage

By: Roberto Bell

A fairly high percentage of computer users are now educated enough to know they must have security products deployed in order to protect their computers.

In the case of Corporate Users, the IT staff makes sure their gateway is stacked with the latest and greatest security appliances protecting the parameter.

In the case of Home Users, the users themselves make sure to install security software, typically a combination of personal firewall, antivirus and anti-spam. Or a single streamlined Internet Security Suite.

In both cases, the solution is simply not good enough!

We’ll start with explaining why security software running on top of the computer it aims to protect will always be inferior to an external hardware solution.

The following points are well known to the IT professionals as they would obviously never rely on software installed on users’ computers alone, and will always focus on the hardware-based security appliances protecting the organization’s perimeter.

The advantages of external hardware-based security appliances are:

Immunity from the inherent vulnerabilities of the underlying OS – If, for instance, an organization is running MS Windows on all its computers, the security software installed o the computer will still suffer from the same underlying vulnerabilities and backdoors that Windows inherently has. When you are protected by an external appliance who has its own proprietary OS (Or a flavor thereof), the security mechanism does not suffer from these vulnerabilities.

Mobile code is not run - content arriving from the internet is not executed on these appliances it just goes or does not go through into the network. It makes it more difficult to attack as the mobile code delivered by the hackers does not run on the appliances.

Cannot be uninstalled – Security attacks often start by targeting the security software, while trying to uninstall it or stop its activity. Software-based security solutions, as any software program includes an uninstall option that can be targeted. In contrast, the hardware-based security appliances cannot be uninstalled as they are hard coded into the hardware.

Non-writable Memory - Hardware-based solutions manage the memory in a restricted and controlled manner. The security appliances can prohibit access to its memory, providing greater protection against attacks on the security mechanism.

Controlled by IT personnel – The security appliances are controlled by IT, who constantly maintains the highest security policies and updates.

Performance - The security appliances are optimized for maximum security and operate independently from computers in the network, not degrading the performance of the desktops or consuming their resources.

Prevent potential software conflicts – The security application you install on your computer will reside on the same computer with an unknown amount of other unknown software all using the same CPU, memory, OS and other resources. This often results in various conflicts, “friendly fire” between 2 or more unrelated security application installed on the same computer etc. When using a dedicated hardware security appliance, nothing runs except for the intended use it was made for.

These are all just the general conceptual problems of protecting a computer with the exclusive reliance on an installed software security application.

There’s a lot more to be said about the problems with these types of solutions. The lack of Network Address Translation (As you’d get in a dedicated external hardware-based security appliance), lack of physical network separation (DMZ), the fact that even simple ARP poisoning attack cannot be stopped by them and much, much more.

Now that we’ve clearly established that using software-based security applications is not the best security solution – what’s wrong with the security that Corporate Users get? The IT staff makes sure their gateway is stacked with the latest and greatest security appliances protecting the parameter.

We’ve shown that that would be the best way to go – So where is the problem?

The answer to that is simple – Mobility.

More and more of the corporate users actually have laptops and no desktop computers. More and more users are becoming mobile, working remotely from outside the organization, working either from home, or are simply on the road traveling as part of their business duties.

The minute the user packs up his laptop and leaves the protected (by a series of dedicated hardware security appliances) organizational perimeter – all the amount of money and professional effort that went into building up the corporate gateway, all of that becomes meaningless!

The user has left the corporate protection behind, and is left essentially “naked” only with the software security solution to his protection. And we’ve already established above it is not enough.

So what is the perfect solution?

The perfect solution that solves all the issues presented above is simply to use a Personal Security Appliance – A term coined by Yoggie Security Systems.

Yoggie has coined the term and essentially created a whole new category of security products. The first of its kind in the world is the Yoggie Gatekeeper which is a powerful and robust hardware-based security appliance that connects to the laptop and externally scans and protects all the traffic with a series of 13 different security applications.

The Yoggie Gatekeeper is tiny and mobile, fits comfortably in your palm and can simply be attached to a USB port on your laptop, which provides both the power and connectivity.

This way the powerful corporate-level security can be re-instated even as the user is away from the protected corporate perimeter, allowing the laptop user maximum performance and productivity (by offloading it and using external security applications, instead of laptop-installed ones), giving them the highest level of security, and allowing the IT department means to monitor and enforce security policies over remote and traveling laptops without being intrusive to their users!


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Computer Internet Security: How Viruses Can Destroy Your E-business

It is amazing how many people; both casual Internet "surfers" and online marketers choose to ignore computer internet security. Perhaps it is simply due to ignorance as to how widespread and dangerous computer viruses are or that they are simply "too cheap" to invest in quality internet security products. Then again it could be a matter of their naive belief that "it will never happen to me".

Whatever the reason, with some computer industry reports claiming nearly 5,000 "new" computer viruses being discovered each year, whether you are a casual Internet surfer or a serious online marketer, you cannot afford not to take computer virus threats very seriously! Just imagine logging into your computer one fine day to check your bank account or PayPal account only to find all your funds are gone! Your hard earned money, either from your traditional job or online business (perhaps both) have been stolen. Yes, there are viruses out there that are capable of gathering sensitive data (passwords, credit card information, etc.) from your computer without your knowledge and sending it back to the criminals that wrote the virus programs. Good-bye savings! So it is well worth your while to invest in the best internet security software that you can afford. So what is a computer virus anyway?

In simple terms, a computer virus is a program that has the ability to spread throughout your computer and/or network by attaching itself to your program files or host files. Once the computer virus has copied itself throughout your computer system, depending on the type of virus, it starts to interfere with the normal operation of your computer and /or network in a variety of ways which we will discuss in a later article. Unfortunately computer viruses come in many different forms, so there is no one common cure that will prevent and destroy all the many viruses out there. Some of the more common viruses are:

* Boot sector viruses that focus on infecting the boot sector of a hard drive as well as the "master boot record". Simply starting or "booting" your computer is enough to activate this nasty critter if your computer is infected.
* File infector viruses like to go after your application programs by attaching themselves to the code of the host file. This allows them to spread from one computer to another over a network once the host application is utilized by the computer user (you).
* Macro viruses are actually tiny programs on their own which can infiltrate an application program and then begin to replace normal programming code to cause unexplained and potentially destructive behavior, which may result in data loss and more.

Other virus types that are becoming more common and that you need to be aware of include:

* stealth viruses which have the ability to hide from all but the best internet security programs,
* time bomb viruses that are written specifically to become active on a certain date or time specified by their creator,
* polymorphic viruses have the built in ability to actually change their code to fool basic antivirus scanning software until they are ready to strike,
* multipartite viruses are a combination (or hybrid) of two or more viruses such as a boot sector virus and a file infector virus,
* logic bombs are written to strike when a certain event, predetermined by their creator, happens. Until that time, they behave like a time bomb virus, lying in wait.

On final tidbit of information just in case you still are unconvinced of the seriousness and threats to your computer internet security posed by computer viruses. Depending on your information sources, estimates of new computer viruses discovered each month range from as low as 100 upwards to over 500! Clearly it is no longer a question of "if I do get a computer virus infection", but rather, "when I get a computer virus infection". In my next articles we will discuss Antivirus software, what it does, how to tell if you have an infected computer and/or network, and what you need to look for in a good Antivirus software program for your internet security system.

Article Source: http://www.articlesnatch.com

About the Author:
Barry has earned several awards for his article writing efforts on a variety of topics. Visit his website Computer Internet Security.Com to learn more about computer internet security or to discover his recommended best internet security software.


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