It can help reduce costs by eliminating the need to hire staff, which in turn reduces overhead expenses.(Moreover,) With managed network services, businesses can also benefit from improved security and cost-effective hardware. In addition, they can be used to limit access to certain websites or applications, restricting user activities on the Internet. The firewall also prevents unauthorised access to internal networks, protecting sensitive information from being shared with outside parties. (However,) implementing a firewall alone is not enough; it must be expertly managed in order to guarantee maximum security for your business's data.