Unfortunately no details were given about what makes 50% of all bitcoin transactions “fraudulent” ?
What does that even mean?
* did someone try to send something other then bitcoin to a ₿ address?
* did a client claim he payed and did the payment seem to fail on his end?
* did a client not realise that you as payee also pay for the network fee?
Nowadays these kind of problems would be easily prevented by using bitcoin lightning payments, because they work in a fraction of a second and specify the exact amount that has to be payed.
Also they are almost free of transaction costs.
What does that even mean?
* did someone try to send something other then bitcoin to a ₿ address?
* did a client claim he payed and did the payment seem to fail on his end?
* did a client not realise that you as payee also pay for the network fee?
Nowadays these kind of problems would be easily prevented by using bitcoin lightning payments, because they work in a fraction of a second and specify the exact amount that has to be payed. Also they are almost free of transaction costs.