Cronos halted its blockchain after identifying an exploit in the Tectonic decentralized lending protocol that involved an estimated $75 million. The exploit leveraged Tectonic’s 20% collateral factor and low liquidity, causing the protocol’s governance token price to rise 100‑fold within 20 minutes before the attacker borrowed assets, a pattern researcher Weilin Li described as a pump‑and‑borrow attack similar to a “Mango‑market style” maneuver. Li initially estimated $66 million affected, later revising the figure to $75 million, noting that about $6 million was transferred to Ethereum and $60 million remained on the Cronos network, with an additional $8 million held in a separate attacker‑controlled address. Cronos announced the halt on Sunday and said it would provide further updates. Tectonic warned users not to interact with the protocol while it investigated. Neither project has confirmed the cause or the total loss, and no restart timeline has been announced. Crypto.com CEO Kris Marszalek stated that the company’s app and exchange continued to operate normally and that user funds were safe. Cronos and Tectonic have not indicated whether they will restrict attacker addresses, recover assets or compensate affected users. Cointelegraph contacted both projects and Crypto.com for comment. The incident underscores the risks associated with decentralized lending protocols and the challenges of responding to large‑scale exploits in real time.