Wrong assumptions programmers make about fraud prevention:
-- A mobile phone number uniquely identifies a single person.
-- Every person has a mobile phone number and they only have one mobile phone number.
-- If a person's mobile phone number is associated with VoIP or Google Voice, that indicates fraud.
-- Every person always has their mobile phone handy and it is always able to receive calls and SMS messages under all circumstances.
-- Mobile phones are never lost or stolen and their batteries never run down.
-- Mobile phone numbers last forever.
-- An email address uniquely identifies a person.
-- Every person has an email address and they only have one email address.
-- Every person is always able to receive email under all circumstances.
-- Email addresses last forever.
-- People never travel to foreign countries.
-- A person's IP address always determines where they are located.
-- Geolocated IP addresses are always accurate.
-- Geolocated IP addresses always indicate the preferred and correct human language of the person on the other end.
-- The IP address for a customer will never change during a given session (i.e. LEO satellite internet does not exist).
-- If the IP address for a customer changes "too quickly", that indicates fraud (i.e. LEO satellite internet does not exist).
-- Your customer will never connect to you through a VPN.
-- If your customer connects to you through a VPN, they are doing something fraudulent, rather than trying to get around your geolocation brain damage.
-- A mobile phone number uniquely identifies a single person.
-- Every person has a mobile phone number and they only have one mobile phone number.
-- If a person's mobile phone number is associated with VoIP or Google Voice, that indicates fraud.
-- Every person always has their mobile phone handy and it is always able to receive calls and SMS messages under all circumstances.
-- Mobile phones are never lost or stolen and their batteries never run down.
-- Mobile phone numbers last forever.
-- An email address uniquely identifies a person.
-- Every person has an email address and they only have one email address.
-- Every person is always able to receive email under all circumstances.
-- Email addresses last forever.
-- People never travel to foreign countries.
-- A person's IP address always determines where they are located.
-- Geolocated IP addresses are always accurate.
-- Geolocated IP addresses always indicate the preferred and correct human language of the person on the other end.
-- The IP address for a customer will never change during a given session (i.e. LEO satellite internet does not exist).
-- If the IP address for a customer changes "too quickly", that indicates fraud (i.e. LEO satellite internet does not exist).
-- Your customer will never connect to you through a VPN.
-- If your customer connects to you through a VPN, they are doing something fraudulent, rather than trying to get around your geolocation brain damage.