For every MLH Member Event, we ask the organizers to send us the following registration and check-in information for each attendee who has opted into the MLH data sharing checkbox:
Email
Phone Number
Full Name
School
Level of Study
Country
In addition to that, we might separately contact attendees to request additional information for other processes (like Shipments, Custom clearances, etc.) which may include Shipping addresses, Date of Birth, and any other relevant data.