Computer viruses are a major problem for computer users worldwide. They are programs that have the ability to reproduce and infect you system. In addition to being able to reproduce, viruses may be designed to do different destructive actions so a virus can destroy programs and data right away or can stay dormant for some time and do its damage in a certain time therefore Learning about viruses can help you to keep your system free from viruses. Computer Viruses are becoming more and more sophisticated and are transferred between computer systems using various methods. While email has been the primary method for the spread of these recent computer viruses, it is not the only method. A computer virus can also enter a network by CD, floppy disk, internet download, file sharing programs or by remote users connected to a network with an infected system. Once a computer virus gets into a network it can spread from computer to computer easily. After viruses infect your system, they may wait for a signal before performing damaging the system: time trigger actions and logic actions. Time actions are signals activated by a specific time or date. Logic actions are activated when specific functions are performed. Most computer viruses show three basic characteristics: a replication process, an activation process, and an objective. The replication mechanism searches for other programs to damage, if it finds any, it inserts the hidden instruction in the program then it modifies the execution sequence of the program. The activation mechanism checks for the occurrence of some event. When the event occurs, the computer virus executes its objective. Computer viruses have impacted a significant number of computers over the past few years. There ar... ... middle of paper ... ...a firewall to protect your system network, so that viruses that spread through email are blocked from entering the network. 4. All emails should be first filtered and scanned so to avoid surprise attack, and emails with certain file attachment such as .EXE, .COM and .SCR should always be prevented from entering the network or the system. 5. All users how work in a company or at home should be educated and have to have clear understanding how to avoid email viruses that are sent from unknown source ,therefore caution should be made when opening attachments. 6. Always scan internet downloads; although the files may seem clean you must always take percussions so that you can avoid viruses from entering your system easily. And this scanning should be performed in somewhere in the network where the virus have no chance to spread through the network.
Email security services will include blocking ransomware and emerging threats with the highest effectiveness and accuracy, stopping new and sophisticated threats such as ransomware, spear phishing, and business email compromise. Spear phishing will be prevented by having a comprehensive defense that includes multiple layers of protection, strong isolation , deep visibility and dynamic security awareness. Attacks will be contained and responses will be orchestrated across endpoint security and web gateways by remediating attacks and blacklisting threats. Dynamically classify impostor email and other threats that don't involve malware. Sender-recipient relationship, domain reputation, email headers, envelope attributes and email content will be analyzed. Custom rules will be integrated allowing group and user level controls to meet the needs of the client. Quarantines will enable the customer to separate email
Imagine this; you are sitting at your desk looking at a bunch of pictures. Just a normal scene, what could go wrong? Suddenly, you’re attacked by deadly things that are trying to steal your personal information like your credit card numbers, email address, all your passwords, everything. Could this be the work of ninjas? No (bet that is what you first thought though). What about the FBI? No. Then what was it? It was a virus. If you hadn’t figured it out by now, you were looking at pictures online using Google images (for all you Bing fans, I’m sorry but Google is much better). You were downloading pictures from Google and one of them happened to contain a virus and it was downloaded with one of the pictures. How do I know this is a virus? The answer is that I don’t. I didn’t give enough symptoms to diagnose this. To the pros at hacking and security, you may know that viruses are not the only threat. If you are new to the world of computers, you might not. The three types of malware that will try to harm your PC or your data in any way are Trojans, worms, and the most famous, viruses. These three are very different and all are terrible for you and your PC.
Among all the communication mediums used in an organization, emails are used widely as an effective form of a business communication. From the company’s CEO to an employee of the business, emails are very easy and inexpensive. “Internal emails can function as an effective communication for sharing basic information, such as new cafeteria prices, paper use guidelines, or security precautions, for example. Sending simple messages to an entire workforce with just the click of a mouse is fast, easy, convenient and can save the company money”. (Lorette,
Treat any emails with respect & confidentiality i.e. do not share with anyone that should. Never walk away from your computer so that someone else can read your emails or even worse be in a position where someone could send an email on your behalf.
At the Aim Higher College there have been recently discovered malware on the campus systems that are due to many recent attacks. I used an Anti-virus protection software called AVG on the computer systems on campus and ran a whole computer scan. The results came back very quick of numbers of malware being high and medium priorities that these should not be taken lightly. Furthermore, the scan found many viruses, Trojans, and malicious software and applications.
The decision to monitor e-mail is left to the organization that provides the e-mail service to users. These organizations can range from educational institutions and private corporations, to governments and non-profit organizations. Each of these different types of organizations has a different agenda and goals, not only in general, but also for their members-and more specifically, for their members' e-mail. While educational institutions can provide e-mail facilities to their constituents for the purposes of convenience, employers almost always maintain e-mail facilities for the sole purpose of improving the on-the-job productivity of their employees.
To stay safe from many different forms of viruses, the best way to go is to download a couple different kinds of anti-virus programs. Harley says it is almost impossible to get through three different anti-virus programs. He also says that it is easily solved when it comes to Trojans, worms, viruses, and malware. If you do not grant access to unidentified or unsafe programs, then it is very hard for viruses to be granted access onto your computer.
The creeper was not really nasty, the “infected computers would simply display the message, I'm the creeper: catch me if you can” the computers did not suffer any lasting damage (Benford 112, Meltzer, and Phillips). The Creeper virus was an experiment of a self-replicating program, not designed to damage but to demonstrate a mobile application (Dalakov). Self means doing on its shelf (“Self”). Replicating means repeating over and over again in exact the same way (“Replicate”). Both these words are combined as Self–replicate is to copy itself automatically (“Self-replicating”).
If you happen to own a small business, that could also be in jeopardy. Not only are individuals being targeted, but large corporations are as well. Most of us use computers for our everyday lives. By opening up an email in your personal account, a hacker could retrieve any
However, there are the wrong way of using email which are; Harassing or ban threatening emails Spamming or send large attachments or documents of un solicited emails Sending confidential information For long-term storage These are the incorrect use of emails in Apple, and there are codes of practice on the correct use of email in Apple. Points above are incorrect and correct way of using emails, these are because sending large or confidential documents can crash the software or may not open as the software does not support the file, also confidential information can be misused, long term storage is misuse of email as they should be recycled. Apple also have codes of practice on the use of the internet, where employees can and cannot use the internet for.
Delete Spam mails immediately and report such mails from unknown parties. DO NOT open spam e-mail, click on links in the e-mail, or open attachments. These often contain malware that will give subjects access to your computer system. 8. Forward vs. Reply: Do not use the “Reply” option to respond to any business e-mails.
In this globalized arena, with the proliferating computer users as well as computer networks, risks associated like Malware attacks are also multiplying. As the proverb
Electronic Mail, a means of communication that is growing at a very rapid rate. In this paper, I will write about introduction of e-mail, the advantage and disadvantage of e-mail, mailing lists, sending an e-mail message, sending attachments, e-mail improvement, and security features. Introduction of Electronic Mail Electronic mail (E-mail) has become popular and easy way of communication in this decade. E-mail is a method of sending and receiving document or message from one person to another. E-mail is not only replacement for postal mail and telephones, and also it is a new medium. E-mail send plain text, images, audio, spreadsheets, computer programs can attach to an e-mail message. Using the e-mail, you must have a computer on a network. The computer must require a modem and phone line. Sending and receiving e-mail needs an e-mail program. Every e-mail user requires an e-mail address. This e-mail address is similar to a postal address. E-mail address is written as username@domain, for instance, PCLEE@juno.com. The username is used for sending and receiving e-mail.
Virus is one of the most common malware. Unlike spyware, virus is largely designed to harm useful programs or wreck down an entire operating system. There are many ways through which virus may enter a computer. The most common way is via email attachments. A...
Malware can survive in a number of ways say different sizes, shapes and also the purpose ranging from viruses to spyware and to bots. Malware in general is classified into two types. They are the concealing malware and infectious malware. In case of infectious malware, the malware code is said to spread all over which means that the software code shall replicate from one user to another and this goes on. In infectious malware, we need to consider two cases, which are called the viruses and the worms. Viruses are termed as the software that has executables within itself and causes the executables to spread when it is run. The second case called worms is a software which infects a computer and then spreads to others.