Methods and systems for multiple scatter estimation in Positron Emission Tomography are provided. A user action performed in a synchronization window, such as a popup window or tab of a web browser, may cause synchronization data to be generated. Advantageously, by using such neurostimulation, a fitting system may be utilized that does not normally require T-level threshold measurements. The task of remediation of the vulnerability in the first software component can be assigned to a user and tracked.