These days, comprehensive cyber security is mandatory for all your devices-desktops, laptops, tablets and smartphones. There are many exploits and vectors that can get viruses and worms into a network or onto a computer or mobile device.
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Unfortunately, keeping current with updates and being vigilant simply are enough. For this reason, it is crucial to keep current with all OS and application updates and patches. Viruses, worms and malware most often exploit security vulnerabilities and bugs.
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How to Protect All Your Devices from Viruses and Worms Networks: Often hidden in network packets though they can spread and self-propagate through shared access to any device, drive or file across the network.P2P/Filesharing: Spread via P2P file sharing networks, as well as any other shared drive or files, such as a USB stick or network server.Instant Messages (IM): Transmitted through mobile and desktop messaging apps, generally as external links, including native SMS apps, WhatsApp, Facebook messenger, or any other type of ICQ or IRC message.Downloads & FTP Servers: May initially start in downloaded files or individual FTP files, but if not detected, can spread to the server and thus all outbound FTP transmissions.Internet: Via links to infected websites generally hidden in the website’s HTML, so the infection is triggered when the page loads.Email: Carried inside files sent as email attachments.Many worms use multiple methods to spread across networks, including the following: Worms often exploit network configuration errors or security loopholes in the operating system (OS) or applications Viruses can be classified according to the method that they use to infect a computer Any program in this subcategory malware can also have additional Trojan functions. Viruses and worms are a subcategory of malicious programs, aka malware. How Do Computer Viruses and Worms Spread? Because each subsequent copy of a worm repeats this process of self-replication, execution and propagation, worm-based infections spread rapidly across computer networks and the internet at large. These copies will infect any inadequately protected computers and servers that connect-via the network or internet-to the originally infected device.
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A worm makes multiple copies of itself which then spread across the network or through an internet connection. Once a worm has entered your system, usually via a network connection or as a downloaded file, it can then run, self-replicate and propagate without a triggering event. In contrast, worms don't require the activation of their host file.
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Only after the host file is activated, can the virus run, executing malicious code and replicating to infect other files on your system. When the host file is accepted or loaded by a target system, the virus remains dormant until the infected host file is activated. Viruses are often attached or concealed in shared or downloaded files, both executable files-a program that runs script-and non-executable files such as a Word document or an image file. Worms do not require activation-or any human intervention-to execute or spread their code.
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The primary difference between a virus and a worm is that viruses must be triggered by the activation of their host whereas worms are stand-alone malicious programs that can self-replicate and propagate independently as soon as they have breached the system.