In simple terms, a firewall protects your computer from intrusion (scanning or attack) by hackers when it is connected to the Internet. A firewall examines electronic data entering or leaving a computer (or network) and compares it to the rules given to it. If the data matches the rules, its transmission is authorized. If not, it is blocked (bullguard.com). I recommend Aircraft Solutions to use Cisco ASA 5585-X with SSP60. Cisco ASA firewalls protect networks of all shapes and sizes, with consistent security across hybrid infrastructures: physical, virtual and cloud. These solutions combine the industry's most deployed firewall with a full suite of next-generation network security services. They protect corporate networks while providing employees with secure access to data anytime, anywhere, on any device (cisco.com). This Cisco firewall is robust enough to handle a heavy workload without hindering Internet, intranet or cloud usage. Which will help the business maintain high customer satisfaction, and it is expandable for future growth of the business, it has dual power supply in case of any disaster problem. The cost of this solution is high, $224,500 is high, but the potential for expansion and the ability to handle many Internet requests. This purchase would make Aircraft Solutions more attractive to its business and could be used as a marketing and word of mouth boost due to the lack of delay in getting customers to use this product.