Systems and methods for detecting multiple users of an online account

A system for processing user activity data associated with a master user account, the system comprising:

• a processing device in communication with a memory storage, the processing device configured to execute instructions stored in the memory storage to cause the system to:
• receive user activity data associated with a master user account, the user activity data collected at a user device over a time period;
• receive user biometric data associated with the master user account, the user biometric data generated based on physical interactions of a user with the user device over the time period;
• identify a matching sub-user account corresponding to the user within the master user account based on a comparison between the user biometric data and one or more stored action metrics associated with the master user account;
• and
• store the user activity data in association with the matching sub-user account within the master user account.

A non-transitory computer readable medium having stored thereon instructions for processing user activity data associated with a master user account, the instructions including machine executable code which when executed by at least one processor, causes the at least one processor to:

• receive user activity data associated with a master user account, the user activity data collected at a user device over a time period;
• receive user biometric data associated with the master user account, the user biometric data generated based on physical interactions of a user with the user device over the time period;
• identify a matching sub-user account corresponding to the user within the master user account based on a comparison between the user biometric data and one or more stored action metrics associated with the master user account;
• and
• store the user activity data in association with the sub-user account within the master user account.