A_ infection on one computer in a computer network can quickly spread to all the other computer
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There are few situations that are worse than when you have work to do or some form of research to perform, you sit down comfortably in front of your personal computer and then you are suddenly over whelmed with anti-virus alerts or even worse, a screen locker virus that is preventing you from accessing anything on your computer. And it may even encrypt your data and hold it for ransom. As unbelievable as that sounds, we encounter trojans and viruses that perform those crippling functions several times a week. Computer viruses infect both systems with current anti-virus software installed and also unprotected computers. Obviously the unprotected computers are a lot more likely to get compromised by a virus than the protected systems.
There are numerous ways that computer viruses are spread from one computer to another. And a great deal of computer users lack a clear understanding of how computer viruses are spread. both online and offline. Today we'll be covering some of the most frequent and popular computer virus spreading techniques in use today. Most of the techniques have been in use for many years, while others are gaining in popularity.
Email Attachments and Malicious Embedded Website Links. Most computer users became familiar with the high occurrences of email attachments carrying viruses many years ago. Back in the early days of Microsoft Outlook Express, the email client would automatically open email attachments, with little user input. Now the email clients don't automatically open accompanying attachments and the mail preview option can be disabled. And since those changes were put into place, computer viruses spreading through email messages have decreased. They definitely haven't stopped, but they have decreased. Today users still receive infected attachments with messages, but most of the time they make a mistake and open the attachments because the message was supposedly sent from someone that they know and with a title that got them curious about what the attachment contained.
Computer Networks. If your computer is connected to a home network or it's part of a workgroup or domain, your computer could acquire a virus without you being at fault. Another person in your home or office employee at your job could unknowing download an infected file and then quickly spread it throughout your entire home or office network in a very short time, causing slowdowns, data corruption and possibly data loss. You should always have a reputable anti-virus installed and updated on any computer that you use. And if your computer is on an office network that is administered by professional Information Technology staff, you're probably covered. But keep in mind that no anti-virus utility can stop every computer virus. They might slow them down a bit, depending on the trojan or virus, but they still can't stop them all. And in a great deal of the situations that we come across out in the field, the installed anti-virus can't even manage to remove the infection once it's taken hold of a computer that was protected with the anti-virus utility to start with.
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A_ virus_infection on one computer in a computer network can quickly spread to all the other computer
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