Share it !
Since firewalls are so commonly used it is worth exploring them in greater depth. Corporations often set up rules for managing their Web connections using firewalls. A firewall enables a company to designate how all end users can use their network and decide what information is passed through Web servers and other servers.
There are several methods a firewall uses to control traffic that comes into and goes out of the network. One way firewalls do this is through packet filtering. During this process a firewall analyzes small packets of information against pre-designated filters. All data is sent via small packets of information through filters. Safe information is passed through and unsafe information is generally removed.
Another way firewalls mitigate traffic is through proxy service. This means the firewall retrieved information from the Web and sends it to the requesting computer. Still another method of traffic control used by firewall is stateful inspection. This technique allows the firewall to compare certain parts of the data packet to information gathered from trusted sources. Information going to the firewall from the Internet is monitored to determine whether it contains key characteristics that suggest the information is safe rather than harmful. Information designated as safe passes through freely and other information is blocked.
The methods a company selects will depend on a number of factors including personal preferences. Regardless of the method a firewall uses however a company or network administrator can customize the firewall to filter information based on a pre-established set of criteria.
Article by Frank Owen, visit his web site on network security [http://www.networksecurityinsider.com] for more information on network security [http://www.networksecurityinsider.com]
Technical Surveillance incorporates use of high-tech spying gear in order to achieve a surveillance or intelligence gathering objective. The methods of deployment vary depending on type of spying gear and the target environment.
Spying gear employed can use audio, visual, recording or cyber oriented capabilities which can be utilized to monitor a target or target area. Spying gear as fore mentioned, are technical assets and require knowledge and skill to utilize and effectively deploy. To use an analogy: Spying gear is like a hammer which can be used to build a house or something useful or; can use as a weapon or a weapon of self-defense.
Knowledge is the key to success whether one is engaged in doing surveillance or being surveyed because the more you understand how spying gear can be use, the better one can achieve the objective at hand. A bonus is an ability through knowledge to be able to protect your privacy. Once you have a basic understanding of technical spying gear capabilities and methods of deployment one can being to plan for success. The methodology applies whether one is trying to achieve surveillance or counter surveillance objectives.
Deploying spying gear takes a certain amount of stealth and access to target area. However, what motivates a person(s) or surveillance operation to use technical means is also important. One might believe they have absolutely nothing to hide and therefore, no fear such technical operations being used against them.
Remember, "one person's trash is another's gold" and you never know these days what is trash and what is gold. Therefore, treat your information as gold and protect your data and privacy.
For example, most people who work in any type office environment use or have access to a networking computer system which is probably connected via DLS line, cable or wireless servers to the "information super highway" - internet. How many people use computerized day calendars to outline their activities, meetings, important events, even birthdays of loved ones. To a surveillance operation this could be a gold mine of data to be used to further an objective.
Some may argue it does not matter because their work station or computer has is password protect and good security. Perhaps; however there are several technical methods which if properly deployed can collect your information even if you believe you are protected. A common method is by way of introducing what is called a "Trojan horse" name after an ancient Greek strategic war tactics to hide their soldiers inside batter rams to attack their enemies unaware.
Today with some technical knowledge one can write a malicious computer program called a Trojan horse. This malicious program once installed hides inside a useful program which will be downloaded onto the target computer system. At which point Trojans are released to do their job of stealing and transmitting potentially personal data on a target computer to another computer surreptitiously.
This is why it pays to have antivirus software installed to at least minimize this type of digital threat. A Trojan horse or Trojan is a specialized type of malicious programming code. This type of malicious code should not be confused with a computer virus. Most computer viruses are typically designed to infest and destroy data on your computer. A Trojan's purpose is to steal your data not destroy it. One may be worried about viruses when perhaps one should be more concerned about a Trojan horse hiding on computer operating system stealing data.
There are also malicious programs called key loggers which can be placed on a target computer with sole purpose of recording individual key strokes on the computer. Meaning, even if your password is obscure when typing, your key strokes are recorded.
A more technical spying gear device employs same technique using a key logging software hidden inside a simple USB thumbnail drive which can be easily installed and again looks rather innocuous. Also, this type of spying gear device is usually placed at the backend of computer system where most people do not look.
Another technical surveillance technical employs use of RF (Radio Frequency) also commonly known as bugging devices to transmit audio or visual or both types of information from a target or target area to a receiver which can be ? mile away or more.
Some RF devices can be place inside wall sockets or telephones which have their own power source and thereby enabling device to work over a long period of time because it does not depend on a battery. Unless these technical electronic devices are detected by accident, specialized technical RF scanning gear is needed to detected and possibly neutralize the threat.
Additionally, a technical surveillance technique employed is referred to as hiding in plain sight. This may not sound technical, but courtesy of today's advancements in microchip technology sophisticated cameras as small as quarter can be place inside innocuous everyday objects, like pens, clocks, watches and even stuff toy animals to name just a few. Again the key to deploying above mentioned spying gear requires free access target or target area to allow one to surreptitiously record or capture on video intelligence needed by placement of technical surveillance devices.
Sometimes, a surveillance or intelligence operation may employ a method of presenting a target with a gift which is now proudly displayed in their office or home. It could be a pen, a paper weight, a cell phone or even a tissue box. All objects can be place right out in the open, i.e. hiding plain sight.
We have broadly discussed only a few of technical spying gear and methods which can be implemented for surveillance purposes or collecting cyber information. Some use audio, visual or installation of malicious cyber code methods of transmitting information. Some technical spying gear can be hiding in plain sight while others require more stealth.
Knowledge is power. One may feel immune to such technical surveillance attacks or become complacent. This could lead to disastrous consequences. However, it is up to the individual most of time to protect their own privacy and be vigilant because one person's trash is another's gold.
Carl Jones http://www.spygadgets4sale.com, is devoted to helping people find the right spying gear and understanding how to use these devices. If you would like more tips on spying gear or to purchase please visit our website. SpyGadgets4Sale has a great selection of powerful high-tech investigative spying gear and a valuable reference resource of up-to-date security issues and topics concerning the use and implementation of spy gadgets, surveillance cameras and counter surveillance gear. Visit our website and be informed. In addition we offer detailed specifications of for various products we carry along with an FAQ section.
