An individual can take advantage of the usefulness of bitcoin,they can conduct business overseas without minding the extra tax by government or bank.But,the bad people can take advantage of it too by conducting illegal activities,so before it settles,the effect of bitcoin to world business still not much.
Except expanding the businesses overseas, crypto-currencies can make the transactions easier for all involved parties.
It's a big advantage for the people and businesses.
Scammers are everywhere. Is someone is not aware of them can be an easy target. It's why trust is very important, and
before we do some business we need to check reputation of the service we wish to use.
Crypto-currencies don't have huge effects on global businesses, it's shows how much we can grow more, we are at beginning.