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CZ: Four data breach incidents occurred today, and users should strengthen their account security protections

Odaily reports: Binance founder CZ posted on the X platform that four data breach incidents were reported today, involving Coinbase third-party service provider Amplitude, South Korean crypto exchange Bithumb, and South Korean traditional financial institutions Mirae Asset and Daishin Securities. Among them, the Amplitude security incident affected the contact information of some Coinbase users, but user funds were not affected.CZ noted that information such as names, emails, phone numbers, addresses, identity documents, and transaction records leaked from trading platforms may be used for phishing, SIM-swapping, and social engineering attacks.In response, CZ recommends that users set up separate email addresses and strong passwords for different trading platforms, prioritize the use of hardware security keys, Passkeys, or authenticator apps, avoid relying on SMS two-factor authentication, and enable security features such as withdrawal address whitelists and anti-phishing codes. At the same time, users should regularly check account login sessions and API key permissions, and be vigilant against scams impersonating customer service.CZ also reminded users that if a platform suffers a data breach, they should promptly change passwords, revoke unnecessary API keys, check withdrawal records, and be alert to phishing attacks carried out using leaked information. In addition, leaked home addresses and asset holdings information may give rise to real-world extortion or robbery risks, and users should avoid publicly disclosing their personal asset situation.

Upbit, Bithumb List Initia (INIT) as Trading Warning Asset

According to announcements from Upbit and Bithumb, both Korean cryptocurrency exchanges have designated Initia (INIT) as a trading alert asset due to unexplained or unresolved security incidents, such as hacks impacting related wallets or distributed ledgers, which could lead to user asset losses. Currently, deposit and withdrawal services for INIT on both exchanges have been suspended. Upbit stated that upon resumption, withdrawals will be prioritized, with deposit services to be announced separately.

Bithumb's Administrative Lawsuit Holds First Hearing, Citing Regulatory Gap for Transfers Under 1 Million Won

According to reports by Korean media outlet Digital Asset, the Second Division of the Seoul Administrative Court held its first hearing on Oct. 22 regarding the administrative lawsuit between Bithumb and Korea's Financial Intelligence Unit (FIU). The FIU found that Bithumb conducted 45,772 transfers with 18 unregistered crypto asset operators between August 28, 2022, and April 3, 2025, and accordingly issued penalties, which included a partial suspension restricting new customers from transferring crypto assets externally for six months. Bithumb stated during the hearing that transfers of 1 million KRW or above are subject to the "travel rule," and since unregistered operators have been removed from the list of eligible exchanges, there were zero non-compliant outbound transfers in that tier. Transfers under 1 million KRW were not covered by the travel rule at the time; thus, the platform had no legal basis to demand that customers provide recipient exchange details, nor did regulators specify clear blocking protocols. Bithumb also noted that after implementing the Chainalysis API, only about 2% of initially unverifiable addresses were later identified as FIU-designated unregistered operators. Enforcing blanket blocks would disrupt the remaining 98% of legitimate transactions, potentially exposing the platform to customer compensation claims. Bithumb further argued that the six-month penalty is excessively severe and practically amounts to banning the platform from acquiring new customers. The company also challenged the FIU's criteria for classifying overseas operators and the grounds for the...

Bithumb to List Bedrock (BR) and Dolphin (POD)

Odaily News: According to an official announcement, South Korean crypto exchange Bithumb has announced that it will add support for Bedrock (BR) and Dolphin (POD) Korean won trading markets.Specifically, Bedrock (BR) will open for trading on October 6 at 19:00, with the supported network being BNB Smart Chain. Deposits and withdrawals are expected to open within 2 hours after the announcement is published. The reference price is 590 Korean won, and the required number of deposit confirmations is 15.Dolphin (POD) will open for trading on October 6 at 20:00, with the supported network being Base. Deposits and withdrawals are expected to open within 2 hours after the announcement is published. The reference price is 1086 Korean won, and the required number of deposit confirmations is 200.Bithumb reminds users that deposits are only supported via the specified networks, and transfers from other networks will not be supported.

Bonk Guy Calls Another Token USELESS: Already Listed on Upbit and Bithumb, Watch for Its Potential Upside

Trader Bonk Guy (Unipcs) posted that he has long considered USELESS to be this cycle's equivalent to DOGE, SHIB, or PEPE, yet many continue to disregard it. He noted that South Korea's two major centralized exchanges, Upbit and Bithumb, listed USELESS just hours apart today, granting it a major new distribution channel from one of the world's key crypto markets. Bonk Guy further emphasized that attention should remain on whether USELESS will be listed on Hyperliquid, Robinhood, or Binance Spot next. He argued that instead of debating whether USELESS will emerge as this cycle's flagship memecoin, focus should shift to how high its price can potentially reach, as the underlying pattern is becoming increasingly clear. He also noted that investors can either accumulate USELESS now or wait until its market cap reaches several billion dollars, perceiving that stage as "safer".

Core DAO Plans Emergency Hard Fork as Validators Receive Excess CORE Rewards

Odaily News: Blockchain project Core DAO has announced a coordinated emergency hard fork, caused by validators receiving CORE rewards exceeding the blockchain's originally scheduled issuance. Core DAO stated that the incident is under control, malicious validators can no longer continue to obtain excess rewards, and the upgrade will not roll back the network or revoke confirmed transactions.Core DAO previously stated that a small number of validators had accumulated rewards significantly higher than the protocol's set issuance, and that the incident only involved reward distribution, with user assets remaining secure. Coinbase, Bithumb, Coinone, Bitget, and LBank had restricted CORE deposits, withdrawals, or transfers.Core DAO has not yet disclosed the amount of excess CORE issued, the duration of the related activity, whether the extra tokens entered circulation, or the cause of the vulnerability, and stated that it will publish a technical post-mortem report. (Cointelegraph)

Bithumb Suspends Virtual Asset Deposit and Withdrawal Transactions Related to Heleket

According to an official announcement, South Korean cryptocurrency exchange Bithumb has announced the immediate suspension of all virtual asset deposits and withdrawals related to the overseas payment platform Heleket, effective May 21, 2026. The announcement states that Heleket is suspected of involvement in illegal activities such as money laundering and terrorist financing. Bithumb stated that this measure is taken to comply with relevant regulations, including the Act on Reporting and Using Specified Financial Transaction Information and the Virtual Asset User Protection Act, and to safeguard users’ assets. Bithumb also warned that using unverified overseas services may expose users to risks such as hacking attacks and disruptions to deposit and withdrawal services.