Sandbox bridge exploit drains $675K as 329T SAND minted
The Sandbox (SAND)
Editor:
Eugene Serbin
bitcoinethereumnews.com reports that a configuration flaw on The Sandbox’s SAND token contract allowed attackers to mint 329.24 trillion phantom tokens and drain $675,000 from the Ethereum vault. On the night of August 21, 2026, a dormant address exploited the `approveAndCall` function on Base to hijack LayerZero delegate permissions, effectively becoming the sole verifier for bridge messages. This misconfiguration let the attacker mint trillions of SAND across 173 wallets without requiring a legitimate burn on the source chain, though no private keys were compromised.
While Blockaid attached a $49 billion face value to the minted supply, the actual financial damage was far smaller due to liquidity constraints. The attacker extracted approximately 14.75 million SAND from the Ethereum OFT Adapter in under 60 seconds, generating roughly 80 ETH worth $675,000. The precision of the minting suggested careful reconnaissance, with the attacker targeting exactly 100 tokens below the vault’s holdings before an arbitrage bot disrupted the plan.
The vast majority of the minted tokens on Base were effectively worthless because The Sandbox disabled bridging and liquidity pools could not absorb the supply. The Sandbox team responded by disabling all bridging to and from Base and BNB Smart Chain via multisig governance. They confirmed that SAND tokens on Ethereum and Polygon remained unaffected and that the total impact was less than 0.01 percent of the total supply.
How the market reacted
Whalio's own Binance spot order flow for SAND, measured when this story was written up on 30 August 2026. Not the outlet's figures.
Whalio spot data for SAND shows a price of $0.03876 with a 1-hour buy ratio of 53.9%, indicating immediate buying pressure that contrasts with the 49.8% ratio over the past 4 hours. This short-term shift suggests that buying momentum is building in the immediate term, even as the 24-hour buy ratio sits lower at 41.4%. The 1-hour volume delta is positive at $1,715, signaling net inflows, whereas the 4-hour delta is negative at -$455, showing that recent selling has offset earlier activity. Over the full day, the volume delta is -$164,876 with a CVD of -$133,929, indicating that sellers have dominated the broader trading session. These metrics reveal that while short-term buyers are active, the overall 24-hour flow remains net negative.
The latest daily buy ratio of 50.3% sits at the 54th percentile of the last 281 days, against a median of 50.0% - ordinary for this coin.
Twenty-four hours later
What SAND did over the 23 hours after the story broke. The market moves for its own reasons; this is what happened, not what the story caused.
Was that an ordinary day?
The same Binance spot measurements for SAND, averaged over the days leading up to the story.
The current 24-hour buy ratio of 41.4% is below the 7-day average of 45.9%, marking a 4.4 point decline that suggests today is an unusual day for reduced buying interest. Spot volume of $965,842 is only 0.45 times the weekly average, confirming that trading activity is significantly subdued compared to the preceding week. Over the last eight days, the price has dropped 14.1% with a total volume delta of -$771,964, highlighting a consistent trend of outflows. With only 2 of 7 days showing net buying, the coin has experienced a week of persistent selling pressure that continues into the current session.