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Computer forensics is a new and growing specialty that serves both the public and private sectors. IT forensics specialists are not only competent in software related matters, but in those relating to computer hardware issues as well. Computer forensics comes into play in both ethical and criminal issues, including intellectual property law, theft, and fraud. There was a time when those people committing computer crimes weren't at risk from the law - now they are.
These forensics follows traditional principles for scientific investigation. Work in computer forensics is systematic, well recorded and documented, and acceptable within a court of law. The methodology of computer forensics follows several steps. The first is to identify sources of digital evidence. The second is to preserve that evidence from loss, change or corruption. The third step in the process is to analyze the evidence, and the fourth is to present the evidence within the context it is required.
A good forensic specialist can manage the computer system and the data it contains while protecting sensitive evidence. Computer forensics explores both the individual computer, and any relevant networks or server connections. Forensics allows for the discovery of obvious and hidden data, as well as allowing access to password protected, encrypted and otherwise secured data on a computer system. Forensics may also allow for the recovery of deleted files.
As a matter of fact a lot of modern IT forensics work involves recovering files that have been deliberately deleted from computers and cellphones. The drugs trade relies on cellphones to communicate but now they're realizing that a good forensics team can retrieve information on every text message and phone call they've ever made.
You can think of these specialist forensic teams as like the ultimate data recovery specialists. No matter what lengths the guilty have gone to trying to hide the evidence of their crimes these guys can find it and use it against them in court. An example is the guy who set his laptop on fire but realized it was going to take forever to burn. So he threw the laptop into a river and figure that was enough.
It wasn't. Police were able to recover the laptop and almost all the data from his hard drive. He was prosecuted for the crime in question and is now serving his sentence. The only safe way to protect your data against a computer forensics team is to set the computer on fire, smash it to bits with a sledgehammer, put it in a container and have it shot into the heart of our sun on a rocket. And even then you can't be sure....
Industrial applications, the insurance industry, legal professionals, the courts and more rely on computer forensics for many functions, ranging from preventing the spread of illegal materials to avoiding corporate fraud. Computer forensics is a growing field, and one that will continue to provide evidence and insight to prevent growing criminal computer related activity.
Are you worried that your computer might be at risk? Your computer security is something you should take very seriously - it only takes one mistake to cause you major problems. If you want more info and help with your computer security problems then click here.
Computers, being vulnerable due to having both wired and wireless connections, have been a victim to internet security threats. However, you can improve your internet and network security by making use of few steps and establish a network that cannot be hacked by anyone.
We can see great efforts being done by many companies to improve their internet and network security. This has been happening because of the progress of high speed internet service and wireless internet connectivity that has attracted many hackers to access it and misuse it. That is why, one can find many vulnerable computers all over the world, being attacked by spyware, virus and malware causing various instances of security issues, identity theft and cyber crimes.
The first step you must take to improve your internet and network is by installing a firewall. A firewall detects any unauthorized communication that tries to take place in a network or any unauthorized communication to access the internet. Firewall can give users options to allow or deny any communication that may appear to be dangerous to the computer.
Spyware are malicious programs that steal highly sensitive data such as usernames, passwords, personal and banking information. Viruses are computer programs that have the ability to multiply and cause severe damage to the computer's performance. Hence, it is also very important to install an antivirus and antispyware in addition to that firewall on your computer. Make sure your antivirus, antispyware and firewall programs are updated regularly.
It is very important to make use of high quality passwords that cannot be cracked by any hacker. Do not download any data or software from any not to be trusted websites. Do not download email attachments if you are unsure about its source. If you think your PC is infected by a spyware, you must checkout the genuinely of any website login page before you submit your username and password on it. You may install additional software that can fix errors in your computer's registry. These are some of the simple ways you can make use of to improve your internet or network security.
The author of this article, Silki Garg, has written many high rated articles on Internet Security. Her recent articles on Portable Antivirus and Windows Security are sure to be interesting for you.
It seems that the security risk to federal cyber security introduced by a new or emerging technology is inversely proportional to the convenience it offers to industry. Every few years a hot capability comes along that instantly has businesses clamoring to adopt it, while security professionals scramble to discover and address its vulnerabilities. Wireless networking fell into this category, and the rise of Cloud computing over the last few years appears to be just the leading edge in a massive migration towards virtualization and out-sourced data hosting.
An industry unfortunately lacking standardization and oversight, where the uninformed essentially gamble one of their most valuable assets on a table marked with confusing, and sometimes risky, bets. The "valuable asset" in this analogy is, of course, proprietary data. Businesses, and even governments, frequently fail to comprehend the true value their data and intellectual property represent to their organization-much less the value that information might have to others: "Value" cannot always be measured in monetary terms, and oftentimes the value of an object comes not in its positive potential, but in the negative consequences it might produce in the hands of a competitor, criminal, or wary public.
The attraction to the Cloud is undeniable. Cost savings are frequently realized through the outsourcing of infrastructure, software, technical support, and security controls-assuming those services are effective and reliable. In fact, a service provider may be able to offer a computing capability far beyond what many companies might otherwise be able to afford: An outsourced solution is easily scalable, providing a partial or total solution with ready-made growth capability, and it may also offer increased accessibility to data if that is desirable. With respect to security, for a small or mid-sized company with marginal security to begin with, even a service provider with only modest security features may offer an improvement over the existing system.
When deciding whether or not to outsource it is important for an organization to fully understand and quantify their risk in utilizing the Cloud, starting with a comprehensive assessment of the true value of the data and intellectual property being entrusted to a potential service provider. In an outsourced solution, an organization is relinquishing direct control of their data, and possibly business processes as well, to an entity for which the element of trust may be unknown or at least undeveloped. Significant effort should be expended in understanding the details of the service being provided and defining the level of trust obligated by the contractual relationship. Be wary of Service Level Agreements (SLA) containing contractual elements granting the provider wide latitude and limited liability for the storage or confidentiality of data: For instance, some SLAs include provisions for sharing data with third parties or rights for marketing.
Key information to collect and consider when comparing service providers will include:
• Governance, Oversight, and Liability: When was the service provider's last assessment, and have they had citations or security breaches in the past? Is the service provider compliant with applicable regulatory requirements in handling your data? Are you in compliance with applicable regulatory requirements in outsourcing your data? What is the provider's liability and obligation in case of data loss or compromise?
• Physical and Logical Geography: Where are the data centers physically located that will be hosting your information, and how will your data be partitioned on the server(s) relative to other data stored by the provider?
• Security Controls: How is your data secured, both in transit and in storage? How, when, and where is your data replicated, and how long is it retained? How will various security measures impact advertised access and performance characteristics for the service?
• Physical and Logical Access: What security policies are in place for access to, and modification of, the data center and your data? Who will have access to your data? Possibilities include service-provider employees or administrators, third-party vendors, contractors, as well as officials from governmental, compliance, or oversight bodies.
• Balance Risk versus Trust: Evaluate the costs and consequences in the event your data were lost or compromised, and consider maintaining internal control or heightened security measures for that portion of information critical to the organization or the conduct of business. Such sensitive data might concern proprietary products or processes, intellectual property, privacy information regarding employees or customers, or company financial's.
Although various initiatives are underway for establishing uniform standards and oversight bodies for the virtual sector, many such efforts have failed in the past and effective legal and industry standards for Cloud computing appear to be years away from realization. As tighter security and control requirements do come into play in the industry, it will be interesting to see whether outsourcing remains a cost-efficient and attractive proposition for businesses when weighed against the relative risks.
Jon M. Stout is Chief Executive Officer of Aspiration Software LLC. Aspiration Software LLC is an Information Technology/Cyber Security services provider focused on the Intelligence Community (IC). For more information about Cyber Security and Information Assurance and Employment Opportunities in the Intelligence Community go to http://aspirationsoftware.com
Computer security is a broad spectrum, and citing the emerging Internet threats it has become a must to do review work. As more and more digital information is getting online through e-mail client, instant messenger, social network, photo sharing websites, etc., your system is more vulnerable and can be an easy target of fraudsters and scammers. Along the installation of Windows, Microsoft Office, browser, e-mail clients, and more, the most essential job is to give your PC the protection of compatible antivirus or Internet security software. Sometimes, despite all protection the system acquires the infection. And, you may be perplexed with symptoms like slow performance, Windows Lockup, system crash, hard-drive failure, disk or drive inaccessibility, and more. At times, there can be silent errors, and before you awake it can be too late.
Avast is renowned brand while you are discussing the computer security aspect. There are home and business products both, and are powered with advanced antivirus and anti-spyware engines to check viruses, spyware, and other malicious agents. Real-time anti-rootkit protection will make sure that stealth factors, which can be a threat to your precious database stay away from your machine and specifically the Windows operating system files are safe. The brand has integrated some hi-tech features such as Boot-time scanner, avast! SafeZone and AutoSandbox. CommunityIQ network takes care of your system files against emerging Internet threats, as this is the portal empowered by the vast user-base. Avast products have received several acclamation from reputed software testing organizations, VB100, ICSA Labs, and West Coast Labs, are a few to name. Going through the avast reviews offered by these agencies can be a great advantage. These reports are based on practical performance of security software in terms of ease-to-use, intuitive features, effectiveness, update, upgrade and support. Thus, you can choose the best antivirus or Internet security protection for your system.
However, problems related to the installation, activation, update, and upgrade are not denied. There can be different reasons related to compatibility and conflict. So, before you install avast on your system affirm all requirement. Trace out and remove if there is any outdated security software already running on it. Do it either through Windows Control Panel or using an uninstaller tool as per your convenience. Uninstaller tool should be used with acute precision as it might delete important files or registry settings if taken for granted. Post installation problems related to e-mail send/receive, Internet access, sharing of files and peripherals, etc., can also be there, especially due to wrong settings and lack of update. Most of the times, you can fix the problem on your own, by updating or configuring the software application. Windows Firewall and Windows Update are other main supplementary aspects contributing in the PC performance, and must be reviewed regularly. You can uninstall avast and restore it back as well, if you are not satisfied with its performance.
No matter, you have done all to secure your data, but bad situations are enviable, and can slip anytime. So, you must follow safety measures. Regularly backup your data, and use encrypted system to encrypt sensitive files and folders. Download internet files from trusted sources only and stay away from rogue security software. Use password encryption to protect Office files.
The author is a technician at Techvedic technologies, a firm that delivers end to end Trend Support to clients. Online computer repair, Install Avast, Hp support, Remove Bitdefender are few services offered at this one platform along with many others.
The computer network security encompasses the policies and procedures adopted by the network administrators to monitor and prevent any kind of unauthorized access, modification, or misuse of accessible resources. It includes the access authorization of data in network, controlled by network administrator.
The administrator provides ID and password to the users to access the programs and information. It includes various modes like the private and public networks. It can be private i.e. within the organization or it might be opened for public access.
The computer network security must cover all the aspects of network, ranging from desktop to other peripherals. The multilayered and multifaceted approach to a network security for business or organizations renders excellent protection against external threats and internal threats as well.
For small network or for single computer system, a router along with integrated firewall is sufficient. On the other hand, for large network the most appropriate option is the dedicated firewall within the network perimeter. There are many good dedicated firewall applications that can allow for secure VPN connectivity. The important functions of dedicated firewalls are inspection, blocking, and reporting of malicious network.
One of the best complements for dedicated firewall is the content filtering device. Such devices are usually helpful for monitoring filtering, regulating, and reporting of all the web related traffic. The content filters are installed between the internal switch and firewall or router. The outbound and inbound traffic of internet have to pass through such filters. They are usually referred as bridged mode.
Effective monitoring is of utmost importance for computer network security. It helps in competent management of networks, in which the activity log of routers and varied servers can be closely watched and reported.
Moreover, the servers and desktops must have anti spyware and antivirus protection. Today, myriad of threat protection software for enterprise levels are available in the marketplace. The most suitable and ideal threat protection application must be cost effective, and it should provide daily updates of virus definition. Additionally, it should have centralized reporting and management system and active protection for runtime security.
Another aspect of computer network security is assigning permissions to various users in the network. For example, top management might want to assess the systems of their subordinates or teams. They will be granted with limited admin rights to handle their group. They might not necessarily be given the admin rights for the entire networks. You could also block the users from installing software from their workstations. Similarly, you could also prevent them from accessing their systems through portable storage devices. Basically, the entire network infrastructure has to be mapped clearly.
Lastly, the physical security measures are also very important for the overall security aspects of computer network. In order to achieve this, the servers must be kept in secured server rooms with regulated access. It is also better to check the security of the backup media, be it off-site or on-site. Remember that the critical information about your company cannot get into wrong hands, and therefore it is very important to secure your networks, in order to sail towards your business goals.
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Wireless sensor networks (WSNs) are an emerging technology consisting of small, low-power devices that integrate limited computation, sensing and radio communication capabilities. The technology has the potential to provide flexible infrastructures for numerous applications, including healthcare, industry automation, surveillance and defense. Wireless sensor networks promise an unprecedented fine-grained interface between the virtual and physical worlds. They are one of the most rapidly developing new information technologies, with applications in a wide range of fields including industrial process control, security and surveillance, environmental sensing, and structural health monitoring.
A wireless sensor network is a wireless network consisting of spatially distributed autonomous devices using sensors to cooperatively monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants, at different locations. The development of wireless sensor networks was originally motivated by military applications such as battlefield surveillance. However, wireless sensor networks are now used in many civilian application areas, including environment and habitat monitoring, healthcare applications, home automation, and traffic control.
In addition to one or more sensors, each node in a sensor network is typically equipped with a radio transceiver or other wireless communications device, a small micro controller, and an energy source, usually a battery. The envisaged size of a single sensor node can vary from shoebox-sized nodes down to devices the size of grain of dust, although functioning 'motes' of genuine microscopic dimensions have yet to be created. The cost of sensor nodes is similarly variable, ranging from hundreds of dollars to a few cents, depending on the size of the sensor network and the complexity required of individual sensor nodes. Size and cost constraints on sensor nodes result in corresponding constraints on resources such as energy, memory, computational speed and bandwidth. A sensor network normally constitutes a wireless ad-hoc network, meaning that each sensor supports a multi-hop routing algorithm (several nodes may forward data packets to the base station). In computer science and telecommunications, wireless sensor networks are an active research area with numerous workshops and conferences arranged each year.
The applications for WSNs are many and varied. They are used in commercial and industrial applications to monitor data that would be difficult or expensive to monitor using wired sensors. They could be deployed in wilderness areas, where they would remain for many years (monitoring some environmental variables) without the need to recharge/replace their power supplies. They could form a perimeter about a property and monitor the progression of intruders (passing information from one node to the next). There are many uses for WSNs. Typical applications of WSNs include monitoring, tracking, and controlling. Some of the specific applications are habitat monitoring, object tracking, nuclear reactor controlling, fire detection, traffic monitoring, etc. In a typical application, a WSN is scattered in a region where it is meant to collect data through its sensor nodes. Another class of application is the so-called smart space.
Computer security policies are the basic guidelines and rules for accessing a network. These lay out some basic concepts to secure your computers. Computer network security is a complicated area, and is taken up by experts with many years of on-the-job experience.
As more people turn to computers for simplifying their day-to-day activities and jobs, the need for general users to understand the concepts of network security has become important. One should know the risks involved in using the computer without the security systems, and learn how to deal with them successfully both at home and at work.
There are two popular types of network security systems: transit security and traffic regulation systems. When both of these join forces you can be assured of the delivery of important information to the right person without any network pilferage problems. The receiver should also ensure that the information received should be carefully processed using a computer which is loaded and protected with latest protection software.
The simplest form of ensuring security on the net is to keep a close watch on the type of data packets moving between the networks. If an infected packet does not reach the recipient, the host may have nothing to worry about. Traffic regulation systems serve as a protective screen between the receiver and remote sites. These tools generally guards three basic regions of the network: the routers, firewalls and hosts.
The three 'guards' deliver similar service at various points in the network, and it is difficult to draw a differentiating line between them. The truth is that there are no foolproof systems which offer a guaranteed secure system for data transferred in the public network. With the increasing use of the Internet, network security is fast becoming crucial for the safe use of the systems, and therefore computer network security is all set to be an important part of our regular computer usage.
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