Exchange Risk

Kalshi recently caused controversy due to the death news of Hameini, leading to a surge of funds into related prediction contracts, which resulted in settlement chaos and a trading halt. Although Kalshi refunded users with a net loss of approximately $2.2 million, the platform's promotional activities were criticized and prompted U.S. lawmakers to call for investigations into similar assassination-related contracts. Polymarket also faced controversy, as the settlement of certain contracts angered users and raised suspicions of insider trading.

On March 3, news reports indicated that the prediction market Kalshi sparked controversy due to the death of Iran's Supreme Leader Khamenei. Traders expressed dissatisfaction with the "death clause," and returns were modest. Market trading volume surged, but improper operations face regulatory risks. Analysts warn that prediction markets need to balance commercialization and compliance, and trading on sensitive events should be approached with caution.

ZachXBT alleges an Axiom employee misused internal tools to access private user wallet data for profit and shared it with a select group tracking traders. Axiom responded by revoking access and initiating an investigation amid rising concerns about data ethics in crypto.

Foresight News reports that according to the SEC official website, the Options Clearing Corporation (OCC) proposes to implement "Specific Wrong-Way Risk" (SWWR) controls for spot cryptocurrency ETP positions held by clearing members or their affiliated institutions as custodians. In such cases, the relevant fund shares and option valuations will be set to zero to reduce credit exposure caused by cryptocurrency custody risks. Additionally, OCC plans to stop accepting letters of credit and GSE debt securities as eligible collateral.

Holdstation suffers a supply chain attack, with attackers stealing developer session tokens and injecting malicious code, resulting in a loss of 462,000 USDT funds. The team has suspended services, pledged to compensate affected users, and is working with security teams to investigate.

Author: Frank, PANews An on-chain transaction costing less than $0.1 can instantly wipe out market-making orders worth tens of thousands of dollars from Polymarket's order book. This is not a theoretical scenario; it is a current reality. In February 2026, a user revealed a new type of attack against Polymarket market makers on social media. Blogger BuBBliK described it as "elegant & brutal," because the attacker only needs to pay less than $0.1 in Gas fees on the Polygon network to complete an attack cycle in about 50 seconds, while victims—those market makers and automated trading bots placing genuine buy and sell orders on the order book—face order destruction or passive losses. PANews has looked into

Hong Kong virtual currency trading platform AAX ceased operations due to system maintenance, resulting in over 300 customers being unable to recover approximately HKD 100 million in assets. The person in charge fled and was later arrested. They are currently facing multiple charges including theft and fraud. The police have confirmed that victims have suffered losses of about HKD 81 million.

BlockFills has suspended all customer deposits and withdrawals, and due to losses of approximately $75 million from its crypto asset lending business, CEO Nicholas Hammer has resigned, with Joseph Perry taking over. Market volatility has led to a decline in collateral value, resulting in irreparable losses and revealing the company's structural weaknesses. The current status of customer funds is unclear, with some customers having completed withdrawals before the freeze.

The CEO of the crypto lending platform Blockfills, Nicholas Hammer, has resigned, with Joseph Perry temporarily taking over. The company suffered a loss of $75 million due to market deterioration, suspended deposit and withdrawal services, and is seeking to restore liquidity and may look for a buyer.

A Chinese man was arrested in Thailand for allegedly being involved in a scam related to the BHE Exchange cryptocurrency trading platform, affecting approximately 20,000 victims with losses exceeding $128 million. The man promised high returns, then the platform shut down. He has now been handed over to the investigation authorities and is awaiting deportation back to China for trial.

Step Finance, SolanaFloor, and Remora Markets announce shutdowns after a January hack resulting in $40 million worth of assets stolen. After failing to find a viable business recovery plan, they have decided to cease all operations and offer buyback and redemption options for secured token holders.

Decentralized lending protocol Zerolend announces the suspension of all operations due to decreased market support and rising malicious activities making it unsustainable. Users are advised to withdraw their remaining funds, and ZeroLend will update the smart contract to attempt to recover the affected assets.

ZeroLend announces it will gradually cease operations due to the protocol's current situation being unsustainable, with declining liquidity and increased malicious activities. The team is prioritizing ensuring users can safely withdraw their assets and recommends users withdraw their funds as soon as possible.

The cryptocurrency market has experienced significant fluctuations recently. Blockfills has temporarily suspended customer deposits and withdrawals due to liquidity pressure, although certain transactions can still be conducted. As a liquidity platform serving multiple institutions, its suspension has raised market concerns, reminiscent of the 2022 crypto winter. Backed by strong shareholders, whether Blockfills can resume normal operations smoothly in the future remains to be seen.

DeFi derivatives protocol Polynomial ceased operations on February 14, entering the winding-down phase, shutting down Polynomial Chain and Trade, and canceling the first quarter TGE plan. The lack of liquidity was the root of the problem; the team will retain participant data, and the new company will still be related to derivatives.

The cryptocurrency market has experienced significant fluctuations recently. Blockfills has temporarily suspended customer deposits and withdrawals due to liquidity pressure, although certain transactions can still be conducted. As a liquidity platform serving multiple institutions, its suspension has raised market concerns, reminiscent of the 2022 crypto winter. Backed by strong shareholders, whether Blockfills can resume normal operations smoothly in the future remains to be seen.

The Jing'an District Court in Shanghai tried a virtual currency investment dispute case. Ms. Wu sued after being induced by a host to invest 1.05 million yuan and was unable to withdraw funds later. The court held that her investment actions violated laws and public order and morality, ruling that Ms. Wu must bear the losses herself and dismissing her claims. This verdict serves as a significant warning to investors engaging in speculative virtual currency investments.