Network Security: The Risks of Having an Unsecured Network
One of the reasons why it is necessary to make sure that your network is fully secured is to ensure that it cannot be hacked or any of your information passed on to third parties; this is primarily because extremely important information will invariably be passed from one computer to another computer, within the network during a working day. If the network is not secure at the logical as well as the physical level, one is definitely not going to know that important information is being funneled through channels up on the Internet to possibly your rivals as well as your competition.
That is the reason a good network security company is going to make sure that every single security tool and other necessary features, such as firewalls, are in place. Fundamentally, the primary reason for doing all of this is quite simply to protect your hardware as well as the data to the best of your ability. The way in which this is carried out, including the methods and tools is all very much dependent on the network that you have and what your business requirements are.
An unsecured network on which internal management as well as external penetration and hacking tests have not been done are definitely a security hazard for any company out there. That is the reason why a company’s key assets need to be protected in the strictest manner possible.
One of the most biggest risks about having an unsecured network is that the moment you go online on an http:// (including intranet) connection, there is a chance of every sort of vital information being transferred from your computer. In the same manner important information can be downloaded straight from your different hard drives, just because some other computer has managed to bypass your security measures. That is one of the more risky aspects of working on a computer on an unsecured network.
If your company has a number of computers that are connected to each other through a faulty and unsecured network, it isn’t every single business transaction between them easily accessed by anybody connected to that is at risk from hacking. Private information including credit card information and any other data, which you may have stored in your computer system is also obtainable to unscrupulous information thieves and hackers out there if given the opportunity. That is the reason why it is necessary to look for a company which can give you exceptional security measures including extremely efficient firewalls so that there is absolutely no question of any sort of information being transferred to computers outside the network.
If you find yourself upon an unsecured network, you should be particularly wary when exchanging any personal information and sending anything online. In the same manner, it is always a good strategy to make sure that you disconnect the link when you are not using it, especially when you do not know whether the network is secure or not. This goes a long way in keeping your computer and network safe from unwanted access from external parties.
In: Security · Tagged with: enable, password
on December 5, 2007 at 5:07 pm
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It's totally obvious when a "consultant " walks in and has no real experience in their field, and I personally won't hire a consultant that doesn't have a reference list of similar projects completed.
You really need some real-world experience first: get a job in the IT field, after five years you could probably wrangle your way into network security, get at least five years in network security, and then you'll be in a viable position to try this.
As an aside: if you're thinking about consulting but don't know if what you want to do is possible, how to do it, if you have a market, or who that market is… that should tell you something important.
on December 5, 2007 at 5:19 pm
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It isn't a bad career. However The two classes you listed are not enough really. In addition, I'd take computer security classes and consider Novel, Microsoft and Cisco certification as well. Ideally, you should have a college degree in computer security.
on December 5, 2007 at 5:27 pm
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Btw, what’s the common use for this? I’m using arpspoofing techniques, but it’s frustrating, I’m trying to understand how it works better. I can forward packets from one IP to me, but how do you do a whole subnet?
on December 5, 2007 at 6:10 pm
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The package isn’t in the Ubuntu repository unfortunately..
on December 6, 2007 at 1:03 am
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Small packets can slip through a firewall, where there are rules for sting comparisons.
i.e. you have a rule to block packets containing the string worm.exe
but the message is so split up/fragmented, worm is in one packet, .exe is in an other, therefore it doesen’t match the rule set and allowed by the firewall.
on December 7, 2007 at 12:01 pm
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Probably the most widely-recognised security-related courses are given by the SANS institute (http://www.sans.org/). They are not for beginners, though: you'll need a solid grounding in network and operating system configuration and deployment.
Be prepared for disappointment if you try to get a job armed solely with qualifications. Experience is everything in this industry.