The cryptocurrency market is experiencing a significant sell-off, with AB (AB), Zcash (ZEC), and Monero (XMR) among the hardest hit. AB is nearing a critical support level at $0.00500, with potential declines to $0.004300 and $0.003800 if it breaks below. Zcash has plummeted 19% to under $350, and a further drop below $300 could see it fall to $187. Monero has also extended its losses, dropping over 1% on Tuesday, with a risk of declining to $372. Technical indicators, including RSI and MACD, indicate continued bearish momentum for these cryptocurrencies.