Email is an important document by which the user can continue their business and communicate with others. In recent times, cases of all kinds of business are very dependent on computer accompanied with internet. These two are fundamental instruments for the business management. The proper application of computers for businesses such as banking as well as other kinds of financial dealings has fascinated dishonest individuals.
Those types of individuals are coming up with some programs as well as viruses, which are immense threats for network safety, which mainly intends to intercept valuable and important files, which are saved in home computer. A team named CERT of a famous university known as Carnegie Mellon University states that, an internet criminal threaten a network defense in various ways via emails. At first glance, those techniques seemed harmless with theses are not easily detectable until a great damage is occurred.
Email viruses as well as email spoofing are the example of these types of threats. Those are treated as misuses of computer intentionally but are accidentally extend by those persons who are ignorant of their probable effects on the computer network safety. The CERT describes that the viruses as well as malicious program writers use the unawareness of other computer users for spreading these program to other computers.
Email spoofing is a noteworthy computer crime. When the email comes from another resource leaving the sources, which is mainly displayed in the source. In this case, the email account holder gets an email that administrator are demanding the password and other significant information. Sometimes it also asked for modifying the system of email. Here it is also seen that some mails are received from different telephone companies and banks. The account holder opens the mail thinking it a vital mail for them. Because of opening the mail, the viruses spread over the whole computer system. This virus’s cause weakens the security system and even system crash can be occurred.
Viruses or worms also can get access to the computer system via the email attachments. Here virus writers send the receiver a mail with an attached file, which contains the virus. At first, the email can be seemed as harmless mail but after opening the file the whole computer system can be the victim of viruses. Here virus write generally send the receiver funny message. Sometimes the writer can send funny pictures too. Those are only to motivate the receiver to open the attached file. When the receiver opens the file and their computer becomes affected too. Sometimes the receiver sends the file to others. As a result, the whole server is polluted with virus
There is no straight way to get escape from these types of malicious and damaging program. To keep safe the CERT advice all not to open the strange mails even these mails are from the prescribed authority. The receiver can call the authority to verify the mail. CERT advices the email users avoiding downloading the attached files from strange mails. Using antivirus and installing firewalls can be good remedy form the email spread virus.
