Cronos halts blockchain after $75 million lending exploit hits lending app Tectonic
The Cronos blockchain was temporarily halted following a $75 million exploit on the Tectonic lending application. The attacker manipulated the price of the low-liquidity TONIC token to borrow significant amounts of other assets, leading to a massive drain of protocol liquidity.
Why it matters
This incident highlights the systemic risks associated with low-liquidity collateral in decentralized finance (DeFi) and the controversial practice of centralized blockchain shutdowns.
Cronos is a blockchain launched by Crypto.com in 2021 and closely tied to the exchange, which uses it to run cheaper transactions for its own products. Its CRO token is the one Crypto.com holds up as the centre of its ecosystem, and the chain hosts a small set of lending and trading apps, of which Tectonic is the largest.
Tectonic lets users deposit crypto and borrow other assets against it, much like putting up a house as collateral for a loan.
One of the assets it accepted as collateral was TONIC, its own token, which had about $1.34 million of liquidity and roughly $11,000 of daily trading volume. Tectonic's own documentation warns that low-liquidity assets can be particularly susceptible to price manipulation.
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