Contemporary Business 14th Edition by Louis Boone, David Kurtz

تمرين 12

Cisco Systems Tackles Cloud Security More and more businesses find themselves managing increasing amounts of e-mail and storing increasing amounts of data. Many save money and physical space by turning to cloud computing and storage, including software as a service (SaaS). Rather than installing software on site, with SaaS a business gains access to software over the Internet either by subscription or by a "pay as you go" plan. These businesses also need to protect their databanks from computer crime. In a tra-ditional local area network, it is relatively easy to implement security applications at the network's borders. But in the borderless environ-ment of cloud computing and with threats to security increasing, meet-ing this challenge is more difficult.Cisco Systems has responded by developing security applications for cloud-based computing. One application directs a business's Web traffic to security towers located in 100 countries around the world. These locations use layers of antivirus and antimalware utilities to scan Web sites and quickly block access to them if they are compromised.Another application offers both cloud-based and on-site e-mail security. The cloud-based application deletes spam and viruses. The on-site application provides data-loss prevention, e-mail encryption, and other services. Another e-mail encryption service provides cloud-based encryption for locally stored messages. Other apps support security for off-site workers using desktops, laptops, tablets, and smart phones. One feature addresses the problem that occurs when an employee leaves a business. With one click of the mouse, an administrator can disable that person's access to every SaaS application he or she ever used. Also with one click, the administrator can enable access for a new employee.As the vice president and general manager of Cisco's security technology unit states, "Securing the cloud is highly challenging. But it is one of the top challenges that the industry must rise to meet."
-Why is it important to block a former employee's access to company data, e-mail, or applications?