Coinbase, one of the largest cryptocurrency exchanges in the world, has been issued a Wells Notice by the US Securities and Exchange Commission (SEC). The notice warns Coinbase that the SEC has identified potential violations of US securities law in aspects of the company’s exchange, Coinbase Earn, and Coinbase Wallet service. The news sent shockwaves through the cryptocurrency market, with Coinbase’s shares plunging over 8% following the announcement. The company’s shares have already fallen nearly…