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Litecoin network hit by exploit and DoS attack, causing a 13-block chain split but consensus restored.

Protocol Fundamentals
26 Apr 2026
AMBCrypto
View Source
Bearish
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Litecoin faced a critical stress event after a hidden flaw in its MWEB upgrade combined with a coordinated denial-of-service (DoS) attack. This caused block production delays and a temporary chain split with orphaned blocks, raising concerns about transaction finality and cross-chain swap risks. The network resolved the issue through a 13-block reorganization that removed invalid transactions and restored consensus without a prolonged hashpower split. Targeted fixes were implemented to prevent similar exploits, but the incident highlights vulnerabilities in upgrade coordination and network reliability under stress.

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