Initiating provisioning of an existing account based on an unauthenticated request

A computer system, comprising:

• a processor;
• a communications module coupled to the processor;
• and
• a memory coupled to the processor, the memory storing instructions that, when executed, configure the computer system to:
• receive, from a first electronic device during an unauthenticated session, a request for provisioning data, the request associated with identification data insufficient to begin an authenticated session;
• determine, based on the identification data, whether the request for the provisioning data is associated with an existing account;
• when the request for the provisioning data is determined to be associated with an existing account, obtain the provisioning data based on a modifier not available if the request for the provisioning data is not determined to be associated with an existing account;
• send the provisioning data to the first electronic device;
• receive, from the first electronic device, a request to proceed with provisioning based on the provisioning data;
• responsive to receiving the request to proceed with provisioning based on the provisioning data, generate a one-time password and send an indication of the one-time password to an address associated with the existing account determined to be associated with the request for the provisioning data;
• receive, from the first electronic device, an indication including a value purported to be the one-time password;
• compare the one-time password to the value purported to be the one-time password to confirm the value purported to be the one-time password matches the one-time password;
• and
• upon confirming that the value purported to be the one-time password matches the one-time password, provision the existing account based on the provisioning data.