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SEC

Cronos halts blockchain after $75M Tectonic exploit

By Essential Brief Intelligence2026-09-012 min read

⚡ Executive Digest (3-Minute Breakdown)

Cronos, the blockchain launched by Crypto.com, halted block production after an attacker exploited Tectonic, its largest lending protocol, in a $75 million incident involving manipulation of the TONIC governance token. Tectonic had allowed TONIC as collateral with a 20% collateral factor. The attacker rapidly pushed TONIC’s price about 100-fold, deposited inflated tokens, and borrowed other assets, with around $6 million reaching Ethereum before validators froze the network. Tectonic’s total value locked collapsed from about $121.7 million to $3 million, intensifying concerns about DeFi collateral risks. Crypto.com’s CEO said its app and exchange remain secure, and its security team is assisting the ongoing investigation.

This update represents a notable development in the Crypto sector. Organizations and founders tracking this space should evaluate potential strategic and technical implications on their operations.

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