The Cronos network, the blockchain associated with Crypto.com, was halted following an exploit on the Tectonic lending protocol that has been estimated at $75 million.
According to details of the incident, the attacker manipulated the price of Tectonic's native TONIC token, which trades with limited liquidity, before using the artificially inflated value as collateral to borrow funds from the protocol.
The mechanism echoes a pattern seen elsewhere in decentralised finance, where thinly traded tokens are pushed to inflated prices to unlock outsized borrowing capacity against them. Li described the hack as Mango Markets-style, drawing a comparison to the 2022 exploit in which a trader manipulated the price of the MNGO token to drain funds from the Solana-based lending platform.
Network-wide halt
The scale of the exploit prompted a halt of the Cronos network itself, rather than an isolated response confined to the Tectonic protocol. Such network-level intervention underscores the extent to which the exploit threatened broader activity on the chain, given Tectonic's integration into the Cronos ecosystem.
For a network tied to Crypto.com, one of the more prominent exchange brands with a European user base, an exploit of this size and a subsequent full network halt is likely to draw scrutiny from users and observers who rely on Cronos-based applications for lending and other decentralised finance activity.
Details on the exact sequence of transactions, the identity of the attacker, and any recovery or compensation plans have not been disclosed beyond the estimated loss figure and the description of the manipulation technique.