A server behavior modification system assists a customer during a financial activity, such as a transaction, and includes a current financial activity assistance system having a data collection system for collecting current physiological activity data, such as current electrodermal activity data, and a data manipulation system for assessing the likelihood of vulnerability to a predetermined undesired financial behavior, as defined by customer input received by a customer settings definition system. The assessment is based at least in part on the data manipulation system comparing a combined historical behavior pattern with the collected current data. The combined historical behavior pattern comprises a correlation between historical physiological activity data and historical financial activity data. An alerting system instructs a customer behavior modification system to produce an alert based at least in part on an assessment of likely vulnerability to a predetermined undesired financial behavior.