ccna certification book pdf

ccna certification book pdf.Stolen customer data (Stolen customer data) ------------ Attackers steal personal and financial data of bank customers from the customer database. Phonytransactions from an external server -------------- An attacker changes the code of an e-banking application to run arbitrary transactions by impersonating a legitimate user. Fraudulent transactions generated by the theft of a customer's P1M or smart card - the attacker steals the customer's identifier and runs malicious transactions from the compromised account.Insider attack on the system ----------------- A bank employee discovers a vulnerability in the system and launches an attack.Data input errors ------- A user enters incorrect data or sends an incorrect transaction request.Data center destruction ------------- A catastrophic event severely damages or destroys a data center.Identifying vulnerabilities in a network requires an understanding of the important applications used and the different vulnerabilities in those applications and hardware. This may require significant research by the network administrator.10.1.2.2 Risk analysis in ITRisk analysis is the systematic study of uncertainties and risks. It assesses the probability and severity of threats to the system and provides the organization witha prioritized list. Risk analysis identifies risks, determines how and when these risks are likely to occur, and assesses the impact of adverse consequences