What are three effects of computer virus?

What are three effects of computer virus?

Computer viruses infect personal computers (PCs) and server. Some viruses create mere annoyance, but others can do serious damage: delete or change files, steal important information, load and run unwanted applications, send documents via electronic mail (e-mail) or even cripple a machines operating system (OS).

Can a computer virus make you sick?

In general usage, the term “computer virus” includes all forms of “malware,” or malicious software. Instead of sniffles and a fever, some common symptoms of a computer viral infection are slow performance, data loss and system crashes, all of which can make people using the machine feel ill as well.

Are computer virus and human virus are same?

Computer viruses are named after human viruses that spread from person to person. A computer virus is a program made of malicious code that can propagate itself from device to device.

Can a biological virus infect a computer?

In a mind-boggling world first, a team of biologists and security researchers have successfully infected a computer with a malicious program coded into a strand of DNA.

How long does it take for a computer virus to take effect?

A test carried out on different types of ransomware revealed that 1,000 Word documents were encrypted from between 18 seconds to 16 minutes. Some viruses however may be timed to start infecting your machine several days after being downloaded. Other viruses can download in segments to try and avoid antivirus software.

What computer virus Cannot do?

viruses cannot reproduce without a host cell, computer viruses cannotreproduce and spread without programming such as a file or document…

Are computer viruses real?

Strictly speaking, viruses no longer really exist. Original virus writers were mostly gunning for Microsoft, but innovations in security technology have pretty much rendered the old-school replicating code programs obsolete. Nonetheless, the word is still often heard in discussions of security issues.

What is a computer virus and how does it affect the computer?

Computer viruses are small programs or scripts that can negatively affect the health of your computer. These malicious little programs can create files, move files, erase files, consume your computer’s memory, and cause your computer not to function correctly.

What are some ways computer virus can infect your computer?

How Do Viruses Infect Your Computer? Spam Emails And Attachments. Computer viruses often spread by email. Instant Messaging. Instant messaging services such as Skype and Facebook Messenger can be used to spread viruses. File Sharing Services. Dropbox, SharePoint, and other file-sharing services are another means to spread viruses. Fake Antivirus Downloads. Unpatched Software.

How does a computer virus infect a computer?

A computer virus is one type of malware that inserts its virus code to multiply itself by altering the programs and applications. The computer gets infected through the replication of malicious code. Computer viruses come in different forms to infect the system in different ways.

What are computer viruses and their causes?

“A Computer Virus is a malicious software program “Malware” that can infect a computer by modifying or deleting data files, boot sector of a hard disk drive or causes a software program to work in an unexpected manner”. A computer virus resides on a host computer and can replicate itself when executed.