The cryptocurrency market is facing uncertainty following the Securities and Exchange Commission's (SEC) recent action against assets that may be considered securities. This has resulted in a significant drop in the value of popular cryptocurrencies such as Cardano (ADA), Solana (SOL), and Polygon (MATIC), raising concerns about their long-term sustainability. In the past 24 hours, these three cryptocurrencies have seen an average decline of 23% in their value, with a collective capital outflow of $6.04 billion in just one day. The SEC's lawsuits against crypto exchanges Binance and Coinbase for listing unregistered securities have also contributed to the drop in asset prices.