I recently worked on an issue to create a QR code to implement MFA in VFP. Now there is a need to have a different option such as sending an email with a pin similar to the QR code. I was thinking of just having a random number generator create a pin that will be emailed to a user entered email. The user would then have to open the email and validate the generated pin. The idea seems fairly simple. Curious as to how others have accomplished this previously.