The document discusses risk assessment of the e-trading system, which is the most crucial asset, for the firm GNB. It identifies various threats like viruses, hacker attacks, and data theft and assesses the probability, impact, inherited risk, controls, and residual risk for each threat. The threats are categorized as related to software, databases, hardware, network, human factors, and access control. For each threat, it suggests controls like patch management, encryption, backup, firewall rules, monitoring, and policies to mitigate the risks. After controls, most residual risks are assessed as medium.