leonardo da vinci
...ss device, about same size as a wireless "car key". Once you are on the bank's login page you punch in your access code, point the device to the screen and push a button. The small screen on your device will show a control number when everything is OK. As you don't use the keyboard to put in your access code there is nothing for the worm to copy and send anywhere. Downloader Trojan is a self-updating code (program) that will download new files and change itself ("mutate") so it's more difficult to find. The "Loveletter" operated as an e-mail worm, "file virus", and Trojan downloader and was an overwriting virus/worm. e-mail worms are the biggest threat nowadays. Usually they come as attachments to an uninfected e-mail message. The e-mail can very well be sent by the worm itself. It's easy to use a "spamming spider" to collect e-mail addresses and then use these addresses to fake a sender address for the worm. Therefore you should always hide your e-mail address from all spider programs. Computer viruses are software programs deliberately designed to interfere with computer operation, record, corrupt, or delete data, or spread themselves to other computers and throughout the Internet, often slowing things down and causing other problems in the process. Just as human viruses range in severity from the 24-hour flu to the Ebola virus, computer viruses range from the mildly annoying to the downright destructive, and come in new and different forms. The good news is that with an ounce of prevention and a little knowledge, you are less likely to fall victim to viruses and you can diminish their impact. Note: No known viruses have the ability to damage computer hardware such as disk drives or monitors. Warnings about viruses that can cause physical harm are either hoaxes or misinformation. How do viruses work? Basic viruses typically require unwary computer users to inadvertently share or send them. Some viruses that are more sophisticated, such as worms, can replicate and send themselves automatically to other computers by controlling other software programs, such as an e-mail sharing application. Certain viruses, called Trojans (named after the fabled Trojan horse), can falsely appear as a beneficial program to coax users into downloading them. Some Trojans can even provide expected results while quietly damaging your system or other networked computers at the same time. Although it's good to be aware of these different types of viruses and how they work, what is most important is that you keep your computer current with the latest updates and antivirus tools, stay current about recent threats, and that you follow a few basic rules when surfing the Internet, downloading files, and opening attachments. Once a virus is on your computer, its type or the method it used to get there is not as critical as removing it and preventing further infection. After you open and run an infected program or attachment on your computer, you might not realize that you've introduced a virus ...