Question

Discuss the below security risks to Operating Systems. 1. Denial of Service 2. Worms 3. Viruses 4. Identity theft 5. Theft of Service

please write the answer in computer

Answer 1

1.Denial of Service Attack can be done in a several ways. The basic types of DoS attack include:a)Flooding the network to prevent legitimate network traffic.b)Disrupting the connections between two machines, thus preventing access to a service.c)Preventing a particular individual from accessing a service.d)Disrupting a service to a specific system or individual.e)Disrupting the state of information, such resetting of TCP sessions.

2. Worms are similar to viruses in that they replicate functional copies of themselves and can cause the same type of damage. In contrast to viruses, which require the spreading of an infected host file, worms are standalone software and do not require a host program or human help to propagate.

3.Virus is a type of malware that propagates by inserting a copy of itself into and becoming part of another program. It spreads from one computer to another, leaving infections as it travels. Viruses can range in severity from causing mildly annoying effects to damaging data or software and causing denial-of-service conditions. Almost all viruses are attached to an executable file, which means the virus may exist on a system but will not be active or able to spread until a user runs or opens the malicious host file or program. When the host code is executed, the viral code is executed as well. Normally, the host program keeps functioning after it is infected by the virus.

4.Identity theft is a serious crime. Identity theft happens when someone uses information about you without your permission. They could use your name and address,credit card or bank account numbers,Social Security number,medical insurance account numbers and transactions can be made without any personal interaction.

5.Theft of service can be someone who is knowingly avoiding payment for services they have already obtained. Theft of service is defined by Massachusetts state law, these laws vary by state, but generally they are defined by the crime as knowingly securing the performance of a service by deception or threat, diverting another's services to the actor's own benefit, or holding personal property beyond the expiration of rental period without consent of the owner.