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ChainCatcher News, according to SoSoValue data, the total net inflow of XRP spot ETFs is $12.84 million. The XRP spot ETF with the highest single-day net inflow is Franklin XRP ETF XRPZ, with a single-day net inflow of $5.7 million. Currently, the historical total net inflow of XRPZ has reached $132 million. The second is Bitwise XRP ETF XRP, with a single-day net inflow of $3.76 million. Currently, the historical total net inflow of XRP has reached $185 million. As of press time, the total net asset value of XRP spot ETFs is $881 million, the XRP net asset ratio is 0.69%, and the historical cumulative net inflow has reached $887 million.

According to a report by Jinse Finance, monitored by SlowMist, on December 1, the decentralized finance protocol yearn suffered a hacker attack, resulting in a loss of approximately $9 million. The SlowMist security team analyzed the incident and confirmed the root cause as follows: The vulnerability originated from the logic of the _calc_supply function used to calculate supply in the Yearn yETH Weighted Stableswap Pool contract. Due to unsafe mathematical operations, this function allowed for overflow and rounding errors during calculations, causing significant deviations in the product calculation of the new supply and virtual balance. Attackers exploited this flaw to manipulate liquidity to specific values and excessively mint liquidity pool (LP) tokens, thereby making illegal profits. It is recommended to strengthen boundary scenario testing and adopt securely verified arithmetic mechanisms to prevent such high-risk vulnerabilities, such as overflows, in similar protocols.