Advances In Computer Forensics
Computer forensics is the study of digital media, either fixed, as in hard drives, or removable like floppy disks or flash drives, to establish factual information for use in the judicial process. Computer forensics is the acquisition, preservation, examination, and analysis of electronic data. While the processes involved in computer forensics can be used to aid computer users in the recovery of lost or deleted data, its literal function is as a tool in criminal investigations.
Practically every legal case now brought before the courts involves some sort of digital evidence. Computer forensics has seen many advances recently and the field expects to see many more in the future. The uses of computer forensics are expanding to include non-investigative purposes such as data mapping for security risk assessment and data protection. The focus of computer forensics is experiencing a paradigm shift from investigation to prevention. Computer forensics methods are increasingly being used by companies not only to protect themselves from external threats, but also against attack from within. Hackers from within, such as disgruntled employees are becoming an increasing threat to businesses. Forensics can also be applied when crucial files have been accidentally deleted or lost due to hardware failure.
As computer forensics advances, so do the techniques used by criminals to avoid them. Savvy hackers have even been known to employ traps to either destroy or erase media and storage devices, taking the evidence with it. Forensics experts need to carefully inspect computers before attempting to access the hardware for such traps. Some have even gone as far as to attach explosive or incendiary devices to computers to destroy evidence in the event someone tries to access files.
Computer Forensics And Crime
In a new book on the subject, former FBI agent Mark Politt defines the field of computer forensics as being the pursuit of evidence in cyberspace and the application of science to the problem of digital evidence. Certainly, recent advances in computer forensics have revolutionized the capabilities of investigators seeking to fight and prove crime, given the increasing use of technology for organizational purposes in all our lives, including those of wrongdoers.
The computer forensics practice involves the scouring of technological devices for evidences of instances of crime. These could, for example, be detected by searching records of computer use hidden within a system hard drive, or by detailed logs of Internet activity undiscoverable by the regular computer user. Or, collections of e-mails or digital communications could be compiled, either from computer drives or from external server records traceable by officers.
Crimes committed via highly technological devices themselves are the area in which computer forensics is most useful. For example, older-style conventional crimes such as blackmail, fraud, or even harassment can be carried out more clinically today than ever before with computers, online banking servers, and e-mail and instant messaging software.
But as well as these, crimes themselves dependent on new technology, such as corporate hacking, advanced piracy, or e-mail phishing, are equally targets for computer forensics officers seeking to prove and stop crime. Finally, computer forensics is also useful to officers involving conventional, non-digitally executed crime. Communications or plans drawn up by digital technology can make for decisive evidence.
Computer Forensics And Police Work
These days computer forensics and police work go hand in hand. A lot of the time when the police have secured a search warrant to search the property of a suspect or person of interest, they make sure that they are allowed to confiscate all the computers on the premises. This is done because computer forensics can often nail down to the second where a person was online and what they were doing around the time of a crime. Police often rely on computer forensics to figure out whom the suspect was talking to through e-mail or instant message, what types of things they were researching, and what type of web pages they had visited recently.
Police officers are where computer forensics start, but they do not stop there. Highly trained computer forensics experts are the ones that find documents, communications with others, and Internet searches, but they turn this information over to investigators who then turn it over to the district attorney and prosecuting team. While computer forensics alone doesnt usually solve criminal cases for the police, it can usually confirm what the detectives were thinking and lead to more evidence or help lock in a suspects timeline and get them to talk.
Computer forensics can help police, because even when someone thinks that they have covered their tracks after using their computer, everything can be recalled. The Scott Peterson case made computer forensics a household term, yet people still do not realize that every keystroke is recorded, and if there is something there to confirm the suspicions of police, it will be found!
Computer Forensics Experts
Computer forensics experts can help solve crimes and protect corporate security. Police, prosecutors, lawyers, the insurance industry, and many corporations use computer forensics experts to discover digital evidence of crime or corporate espionage. Computer forensics experts are even called in to battle child pornography, organized crime, and terrorism.
Computer forensics experts use scientific methodology to discover legally admissible evidence on computers, hard drives, and other digital media. Their investigations may include storage hardware, individual computer systems, and larger networks. Computer forensics experts first protect the information on the drive from intentional or accidental harm, and then assess the information, cracking passwords, encryption, and other security, if necessary. Finally, the computer forensics expert assesses the information and prepares it for presentation in either a private setting or a court of law.
Computer forensics has many corporate applications, and some large corporations may even choose to employ their own experts to provide additional computer security in the face of possible intellectual property theft, employee theft, or inappropriate computer usage. Law enforcement uses computer forensics more and more, as more crime is planned and organized or even occurs within digital space. Files, emails, photographs, and more may serve as digital evidence to be assessed and presented in court by a computer forensics expert.
Computer forensics can save corporations money in terms of both financial theft and intellectual property crime. The careful scientific work of computer forensics experts can help police solve crimes, and prosecutors see that justice is served. Computer forensics is a young and growing field, but one with much potential for the future.
Computer Forensics Help Solve Crime
Computer forensics are used in many fields, from legalities involving trade secrets to prevention of computer-related fraud; however, more and more computer forensics are being used to help solve crimes. Computer forensics have both obvious and less likely implications in a criminal court and are a helpful new tool for prosecutors and police alike.
Computer forensics use scientific methodology to protect, assess, and analyze computer data. Deleted data may be retrieved or recovered, encrypted or password protected data revealed, and damaged hardware salvaged in the pursuit of information and answers by the computer forensics specialist. Computer forensics consciously work within the rules of evidence set out by the criminal courts, thereby providing law enforcement with viable and admissible evidence within a court of law.
Computer forensics play a growing role in the US courts, and computer forensics experts are called upon in a variety of types of criminal cases. Theft, embezzlement, and fraud may all have computer records and evidence that is assessed and analyzed by a computer forensics specialist. Specifically, computer-related crimes, such as hacking, child pornography, and intellectual property theft are also prosecuted with the aid of computer forensics. Furthermore, computer forensics aid in the search and prosecution of terrorists who may use computer technology for planning, scheduling, and locating acts of terrorism.
Computer forensics enable prosecutors and police to gain admissible evidence against offenders, whether the offense is corporate embezzlement or child pornography. A good computer forensics specialist can not only preserve data, but also even reclaim deleted or damaged data to provide it to the courts. More and more in todays law enforcement world, computer forensics help solve crimes of all types.
Computer Forensics is a Science
Computer forensics is the science of retrieving, analyzing and preserving data gleaned through data storage devices on an ordinary PC. These data storage devices include the hard drive, floppy disc drives, CD/DVD drives and any other data storage device that may be in use.
Computer forensics is in a sense, the autopsy of a computer. Whereas the Medical Examiner performs an autopsy on a person to find out how he or she died, the autopsy of a computer involves discovering what data the computer contains.
This is extremely important in a legal sense. Cyber crimes, unheard of a decade ago are unfortunately rampant now and many large police departments have a cyber crimes unit as well as a computer forensics department.
Many people believe that when they delete information from their computer that it is gone forever, however this couldnt be further from the truth. A savvy computer forensics scientist can retrieve almost any data from a computer.
Financial records, chat transcripts, email, searches and downloads are some of the data sources that could contain incriminating information about a person. Pedophiles are constantly being caught and presented with transcripts of their chat activity with children.
Regardless of the crime committed and in the case of missing persons, if a computer exists in the home, it is often the first thing law enforcement wants to examine. Even when the data recovered isnt proof that the suspect committed a crime, information that the person looked at can often give law enforcement clues they wouldnt otherwise have.
Computer forensics is a science and one that is fascinating and sometimes crucial to solving a crime.
Computer Forensics Reveal All
As technology improves all many computer users have a false sense of security and privacy, believing that everything they do is between them and their computer. The fact is every keystroke that you ever perform on your computer is there for good. Though there are ways to erase information from the view of the average computer users, everything you do can be found forensically. Unless you replace your hard drive in your computer you cannot do away with the things that you do on your computer. The things that can be traced with computer forensics include what programs you used, documents that you downloaded, who you received instant messages from and what those messages said, who you emailed and who emailed you as well as the contents of those emails. If you do Internet searches, what you searched for including the exact search term can be found with computer forensics.
In many criminal cases across the country prosecutors along with computer forensics experts have been able to prove that specific people are responsible for specific actions. Many times suspects will give one story about their involvement in a crime while their computer hard drive gives a completely different story. Most people believe that their computer will keep their secrets safe, but even the most sophisticated software cannot keep computer forensics experts from revealing at least portions of the truth. Computer forensics will undoubtedly continue to grow in the future, helping to prove more and more people guilty of the crimes in which they are accused.
Computer Forensics
Computer forensics is an emerging science that gets a lot of respect from just about everyone. While many of us believe that when we erase a document, a download, picture, or Internet history that it is really gone, its not. A computer forensics expert can likely recover most, if not all, the information that you have attempted to delete from your computer. Most of us will never have to worry about computer forensics, but if you are ever involved in a criminal case and you have your computer taken from you by authorities, chances are that something you have done online will come back to haunt you.
Computer forensics is a relatively new science, and it gained a lot of attention in the courtroom with big cases such as the Scott Peterson criminal trial. Many people have found out when it is too late that computer forensics can recover information from the hard drive of the computer even if it has been deleted. This is because every time you turn on your computer and touch a key it is recorded deep within the recesses of the computer. A computer forensics expert can find word processing documents, e-mails, Internet searches, instant messages, downloads, and even websites that have been visited. All this information can be given a precise date and time, which can help corroborate the evidence again a suspect.
There is no doubt that computer forensics will change the way we all use our computers. This science will also change the way criminals are prosecuted, too. Missing people may be found more quickly, and child predators can be more easily caught. There is no limit to what this science will do for us now and in the future.
What Is Computer Forensics?
Computer forensics is a new and growing specialty that serves both the public and private sectors. Computer 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.
Computer 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 is the process is to analyze the evidence, and the fourth is to present the evidence within the context it is required.
A good computer 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. Computer 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. Computer forensics may also allow for the recovery of deleted files.
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.
You Cannot Hide From Computer Forensics
Advances in computer forensics officers are becoming so rapid that increasingly, it is not possible to hide from detection especially if you are a criminal or wrongdoer. In the West, so much of daily life is now planned, organized, executed or recorded by advanced technology and online servers that digital traces of ones actions are often left. Generally, these are recoverable.
Any wrongdoer using the internet for their activity is therefore vulnerable to computer forensics, as they will leave records of visits to websites, or sending of emails, via the IP legend their connection leaves. Even if this number is not registered to their name specifically, their location is traceable, adding to the capabilities of those computer forensics officers who wish to find them or to prove the miscreants wrongdoing after the event.
If the user is storing illegal material such as certain pornographic pictures on their system, there is also no chance of their escape from discovery by computer forensics. Officers will be able to discern whether there are any hidden sectors to a users hard drive, meaning hidden material can be freed. Any attempt to rename illegal files with false extensions is also discoverable, as files leave traces of their original format on the memory. Furthermore, any false excuse that material arrived of its own accord will be in vain computer forensics officers can detect every use of the save function on a computer system. There is simply no way of hiding your true computer activity.