Coinbase said its USD Coin would be fully backed 1-1 with USD. It isn't.
Coinbase's USD Coin claimed that there was $1 "in a bank account" to back it, meaning that if everyone hypothetically tried to redeem their USDC at once at any given time, it would be possible. A July disclosure showed that this wasn't true, and that the coin was actually backed by commercial paper, corporate bonds, and other assets. Bloomberg speculated that the FTC might investigate the claim as a possible "unfair or deceptive act or practice".