The main drawback to spyware is that it collects information about the user without their knowledge. This can include data such as web browsing history, passwords, or credit card data that could be used for unauthorised shopping or withdrawals of money. It also tracks online activity and gathers a computer's Internet and local network settings to regulate the way that the machine is used.

It can be accomplished using a variety of methods, such as installing additional software on the device and changing dynamically linked libraries, which is how applications are connected to the Internet. Spyware can also cause many other problems, ranging from a variety of pop-up ads to connectivity issues that can be difficult to identify. It could alter your PC's security setting to invite more malware.

Spyware can consume the system resources like memory, CPU power and disk space. This can lead to slow performance, slow applications and even system crash. It is also possible to steal private information and redirect searches to untrusted websites.

Through education about the risks of spyware, users are able to reduce their risk. They should avoid downloading applications from sites that are suspicious, read all the terms and conditions of a contract prior to confirming any software download and do not click on links within pop-up windows, as these may install spyware. Also, they should use strong passwords for all accounts and avoid reusing them across multiple applications. They should also regularly scan their benefits of the software for business computers for spyware and update their protection.