So what's the difference between securities and tokens?
A token is just a unit issued on a blockchain. It could be a stablecoin like USDT ERC-20 tokens, a security token, a utility token, etc. It may or may not be a security, depending on what
the "Howey Test" says:
Under the Howey Test, a transaction is an investment contract if:
-It is an investment of money
-There is an expectation of profits from the investment
-The investment of money is in a common enterprise
-Any profit comes from the efforts of a promoter or third party
The SEC has come out and said that most ICOs were securities offerings. If the ICO team advertises the offering as a profit-making opportunity, then its definitely a security.
Anyway,nobody cares about the SEC and how they deal with ICOs.
The SEC has halted ICOs, charged founders with crimes, frozen their bank accounts, etc. People running token offerings are very careful these days about how they deal with US investors for good reason.