<p><img src="https://images.cointelegraph.com/cdn-cgi/image/format=auto,onerror=redirect,quality=90,width=840/https://s3.cointelegraph.com/uploads/2023-09/b3c64790-55c1-441a-a794-8e665efbaaa7.jpg"></p><p>The financial regulator expressed its frustration at the lack of engagement from crypto firms in a strongly worded letter.</p>