Yamaha Motor Taiwan Co. Ltd is involved in the manufacture and sales of motorcycles, scooters, water vehicles, outboard motors, diesel engines, multi-purpose engines and myriad other technologies.
A few years ago, YAMAHA Motor allowed employees unrestricted use of their personal computers. At the time, the company's internal network relied on an IP management method and only the main computers were connected to the internet. No individual passwords were assigned to staff and some computers had both single and shared users. Since it was impossible to monitor employees' access to the main computers, some individuals breached the company's IT security rights by entering the office late at night to surf the web. After these rogue users went online using the company's main computers, they changed the IP addresses, with the result that the computer network experienced unexpected glitches. However, these culprits could not be traced by the IT department as no passwords were assigned to monitor employee login behaviour.
To address this problem, the company installed firewall software without any integration with Active Directory (AD), so the company could only rely on the IP management function to monitor employees' computing behaviour.
The company felt the need for a more robust solution. After three years of evaluating the pros and cons of hardware or software-based firewall packages and testing them in different environments, YAMAHA Motors decided to purchase a software-based firewall that has an external mail server and web browser which shares the same network pathways, while applying for another network line specifically for web browsing activities, with Microsoft ISA Server connected with this line, to increase the level of IP authentication security control when Active Directory (AD) is used to control individual password access.