Internet didn't change, it's population did. It's 8 billion potential victims and all bit more sophisticated thieves under one roof.
Can't blame Internet. People which were scammed "offline" are now scammed online.
Internet deserves some blame too, when you have 8 billion people, but only 4 billion addresses, you are naturally going to end up with a lot of centralized services to work around those limits.
The internet is the people using it, if many of its users have come up with more effective ways to exploit the rest than the internet has become a worse place.