Cronos Chain
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Summary
Cronos is an EVM-compatible blockchain developed by Crypto.com and operated by Cronos Labs, running a capped, invitation-only validator set. On August 30, 2026, validators halted block production and executed a full chain rollback after a price-manipulation exploit drained an estimated $75 million from Tectonic, the chain's dominant lending protocol; the rollback erased approximately two hours of transaction history network-wide and recovered most of the stolen funds on-chain, while roughly $6.29 million that had already been bridged to Ethereum was not recovered. The incident reignited longstanding debates about immutability, validator centralization, and the degree of operational control Crypto.com holds over the network.
Connected Entities
1 entitiesTimeline(10 events)
1 November 2021
Cronos EVM Chain mainnet launches, developed by Crypto.com and subsequently managed by Cronos Labs (formerly Particle B).
Cronos General FAQ — Cronos EVM Chain Documentation1 December 2021
Tectonic decentralized lending protocol launches on Cronos, incubated by Particle B (later renamed Cronos Labs). TONIC assigned a 20% collateral factor in protocol parameters.
Cronos Halts Its Blockchain After $75M Tectonic Exploit — CryptoTimes1 November 2021
Crypto.com burns approximately 70 billion CRO tokens, reducing total supply to roughly 30 billion.
Crypto.com Wants to Bring Back 70B CRO Token It Once Burned — CoinDesk2 March 2025
Cronos Labs proposes reissuing 70 billion previously burned CRO tokens for a Cronos Strategic Reserve. Approximately 77–87% of community voters oppose the proposal. The governance vote passes, with Crypto.com-aligned validators holding an estimated 70–80% of total voting weight.
Crypto.com Faces Backlash After Reversing 70 Billion CRO Token Burn — CoinMarketCap30 August 2026
Attacker inflates TONIC token price approximately 100-fold within 20 minutes on Cronos, then borrows an estimated $75 million from Tectonic against the artificially inflated collateral. Tectonic's TVL stands at approximately $121.7 million pre-attack.
Number of Price-Manipulation Attacks Hits All-Time High as $75 Million Is Stolen From Tectonic — TRM Labs30 August 2026
Approximately $6.29 million (roughly 2,592 ETH) is bridged from Cronos to Ethereum before the network halt, placing those funds beyond the reach of a subsequent rollback.
Cronos reverses Tectonic exploit — but $6.29M had already left the network — AMBCrypto30 August 2026
Cronos validators halt block production chain-wide. Last block before halt is block 90907150 at 14:32:47 UTC. Cronos announces: 'We identified an exploit in Tectonic. The Cronos Network has been halted.' Tectonic warns users not to interact with the protocol.
Cronos halts blockchain after $75 million lending exploit hits lending app Tectonic — CoinDesk30 August 2026
Cronos executes a full chain rollback, discarding approximately 11,000 blocks and erasing roughly two hours of transaction history. Block production resumes at 23:49:01 UTC from block 90,896,189. Node operators instructed to restart using software version 1.7.8 with updated mainnet snapshots.
Cronos validators erase transaction history to contain massive $75 million lending protocol exploit — CryptoSlate31 August 2026
Crypto.com CEO Kris Marszalek states publicly that the company's app and exchange were unaffected and operating normally, and that security staff were sent to assist Cronos. No compensation framework for Tectonic depositors or rolled-back transaction holders announced.
Cronos restarts network after emergency halt over Tectonic exploit — Crypto.news31 August 2026
Tectonic TVL reported at approximately $3 million, down from approximately $122 million pre-exploit. Cronos and Tectonic indicate a full postmortem is pending. No official loss figure confirmed.
Cronos Halts Its Blockchain After $75M Tectonic Exploit — CryptoTimesDecision Log
- #1publish⛓ pending9/1/2026, 12:30:08 PMhash: FdH3duBUpYjHFskxrQm7jcWRmbyCNGSvwVhir4tHpk6i
8 of 16 cited source URLs have an Internet Archive snapshot.
model: claude-sonnet-4-6
generated: 9/1/2026, 12:29:58 PM
last updated: 9/1/2026, 3:37:56 PM
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