The U.S. Securities and Exchange Commission (SEC) has charged NanoBit and CoinW6 with conducting 'relationship investment scams' through social media platforms like WhatsApp, LinkedIn, and Instagram. These scams involved individuals posing as financial professionals to lure investors into fake crypto platforms, promising high returns through fraudulent activities. The SEC's complaints, filed in New York and California, highlight the growing issue of romance scams in the crypto industry, which have cost victims billions. The schemes involved false claims of SEC registration, fake coin offerings, and misappropriation of funds, leading to significant losses for investors.