What is the intent of a virus?
A virus operates by inserting or attaching itself to a legitimate program or document that supports macros in order to execute its code. In the process, a virus has the potential to cause unexpected or damaging effects, such as harming the system software by corrupting or destroying data.
What are three effects of computer virus?
What are the symptoms of a computer virus?
- Slow computer performance.
- Erratic computer behavior.
- Unexplained data loss.
- Frequent computer crashes.
What are the possible damages caused by virus?
Some computer viruses are programmed to harm your computer by damaging programs, deleting files, or reformatting the hard drive. Others simply replicate themselves or flood a network with traffic, making it impossible to perform any internet activity.
Can computer virus affect humans?
A British scientist says he is the first man in the world to become infected with a computer virus. Dr Mark Gasson from the University of Reading had a chip inserted in his hand which was then infected with a virus.
Can malware destroy data?
Certain types of malware can damage or delete files and programs on your computer. Unless your data is backed up on another hard drive or cloud server, you won’t be able to regain access to many of these files after a cyber attack. Ransomware hackers threaten to delete all of your data unless you give them money.
Can a biological virus affect a computer?
If he got too close to a computer, he could in principle infect that machine. Although this possibility may sound like a foray into science fiction, information security experts believe the blurring of the boundaries between computer and biological viruses is not so far-fetched—and could have very real consequences.
What are the effects of a viral infection?
It seems that viral infections have both positive and negative influences on the development of airway inflammation, wheezing, and asthma.
How does viral infection affect later development of lung disease?
Further mechanisms by which viral infections could affect later development of lung disease are virus chronicity, persistence or latency ( 18 ), and provision of a local foothold for other infections ( 19 ). The mouse model of RSV bronchiolitis demonstrates that enhanced T cell responses are associated with increased severity of disease ( 3 ).
How does a viral infection affect the airway?
These include additive airway inflammation resulting from the inflammatory response to viral infection in an already inflamed mucosa and loss of epithelium, both of which lead to a reduced number of chemoreceptors, impaired clearance of material from the lung, and increased penetration of antigen through the damaged mucosa.