A security is:
1. An investment of money,
2. In a common enterprise,
3. With an expectation of profits,
4. Predominantly from the efforts of others.
Selling something without making any promises doesn't necessarily preclude expectation of profits.
http://www.reuters.com/article/us-israel-fraud/israel-approv...
From https://www.sec.gov/oiea/investor-alerts-and-bulletins/ib_co...:
Depending on the facts and circumstances of each individual ICO, the virtual coins or tokens that are offered or sold may be securities. If they are securities, the offer and sale of these virtual coins or tokens in an ICO are subject to the federal securities laws.
The ICOs that it has charged so far didn't have an actual token associated with them so they were scams with a popular (edit: fashionable) name.
I really hate that people on HN will down vote comments based on misunderstanding of information freely available.
https://www.timesofisrael.com/the-wolves-of-tel-aviv-israels...
Currencies are classed as commodities in the US.
The people downvoting my comments without volunteering a counterargument could probably use some time doing a bit of reading on the topic.