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The Sandbox’s $49 Billion Phantom Mint: How a Bridge Exploit Created Unbacked SAND Tokens

Summary
An attacker minted 329 trillion unbacked SAND on Base via an approveAndCall exploit, but structural bridge constraints limited the actual extraction to $675,000.

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The project of metavers The Sandbox has just faced a critical security flaw during the weekend, having led to the emission of several billion tokens SAND unsecured on the Base and BSC blockchains. We're looking at the state of play... Read more The Sandbox attack: a flaw allows the emission of unsecured tokens SAND appeared first on Cryptoast.

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The Sandbox has contained a failure on its bridge that coined 49 billion SAND tokens without backup at Base and BNB Smart Chain. The project has disabled connections and asks not to operate with those versions of the token. A blockchain bridge allows you to represent an asset on a network other than the one where it is blocked. It works a bit like a traveler’s check: you leave the original currency guarded on one side and receive an equivalent r…

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Merca2.es broke the news on Sunday, August 23, 2026.
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