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600 $BTC is still sitting at the center of a major crypto security story. Blockstream has reportedly refused a ransom demand for the remaining Bitcoin connected to the liquid exploit. This is another reminder that blockchain transactions leave a trail. Attackers may move or hide funds. But, the public nature of many blockchains means those movements can continue to be monitored long after the exploit. Crypto security isn't just about stopping the hack. It's also about what happens afterward