On February 23rd, according to crypto analyst Shoucccc, CZ's first TST purchase transaction was sent through privacy RPC, but the transaction information was still leaked. CZ's transaction set a minimum purchase amount of 363,225 TSTs, but due to the slippage of the blockchain, 365,564 TSTs were actually received, a difference of about 0.7%. If the transaction did not use privacy RPC, it could have resulted in more than $200 worth of profits being earned by the clip robot. A certain address preempted CZ's transaction but was clipped again, which eventually caused CZ's transaction to fail. In addition, the address (0xB2d57876271eA8684e7c521c1265b87703d9A0DA) seems to know CZ's order in advance and try to backrun CZ's transaction by checking CZ's TST balance. Shoucccc believes that this address is not a clip address and has not previously conducted transactions against CZ.