Your summary is very timely and accurate! Here is the verification and supplement based on the latest market data (as of April 21, 2026 UTC).

📰 Today's news highlights

The DeFi industry has lost over $15 billion this year, primarily driven by North Korean hackers.

Completely accurate. Kelp DAO recently suffered a significant attack of approximately $293 million (through a LayerZero bridge vulnerability), suspected to be linked to the North Korean Lazarus group. Previously, there were incidents like Drift Protocol, which led to a rapid drop of over $15 billion in the total value locked (TVL) in DeFi within a short period (some sources claim around $14-15 billion). Platforms like Aave faced liquidity chain issues, damaging investor confidence.

U.S. crypto adoption rate rebounded to 12% in March, Tether leads KAIO financing

Deutsche Bank report confirms: U.S. adoption rate rebounded from 7% in February to 12% in March, Bitcoin still dominates. Tether leads an $8 million strategic financing for the tokenization platform KAIO regulated in Abu Dhabi (total financing reached $19 million), aiming to lower the threshold for institutional funds to go on-chain, with a minimum investment as low as $100.

📉 Ripple plans to achieve quantum resistance for XRP Ledger by 2028

Ripple has just released its roadmap, acknowledging that the quantum threat has shifted from theoretical to credible, with the goal of fully transitioning to post-quantum cryptography by 2028. This includes testing hybrid signatures and an emergency migration plan in the first half of 2026, which is crucial for the long-term security of XRPL.

📈 Mainstream assets 24-hour performance (real-time updates)

- BTC: approximately $75,800 - $76,200 range, slight fluctuations (around -0.2% or slight rebound), still oscillating near $75k, facing resistance.

- ETH; approximately $2,320 - $2,350: slightly down about 0.7%, dragged down by concerns over DeFi liquidity.

- BNB: slightly up about +0.5%, relatively strong.

- SOL: approximately $85-86, slightly down, affected by network metrics and exchange inflows.

The overall market is relatively cautious, with short-term pressure from DeFi hacking incidents, but the recovery in adoption rates and institutional actions provide support.

🚀 Today's top gainers (related to GUN)

GUN (GUNZ) series tokens are leading the gains significantly:

- GUNUSDT / GUNUSDC: around +55%

- GUNBNB: +50%+

This is related to the Gunzilla Games ecosystem (games like Off The Grid) and Solana expansion, with a surge in trading volume and noticeable capital inflow. Note that there is a recent token unlock (approximately $7 million), and short-term volatility may be significant.

Overall market sentiment: DeFi security incidents are currently the biggest risk point, but the rebound in U.S. adoption rates + institutional financing + Ripple's quantum layout indicate that the long-term fundamentals remain positive. BTC is bottoming out around $75k, focusing on the recovery of liquidity and macro factors.