Security Incidents

South Korea's National Tax Service unexpectedly disclosed the 12-word seed phrase for a cryptocurrency wallet, resulting in approximately $4.8 million worth of digital assets being stolen within a few hours. This incident has raised cybersecurity alerts and exposed government negligence in managing crypto assets. Authorities have launched an investigation. This is the third related incident in nearly three months, highlighting operational risks within the government.

Former Mt. Gox CEO Mark Karpeles has proposed a Bitcoin hard fork to recover 80,000 BTC stolen from the exchange over a decade ago. The hard fork would see the BTC, worth $5 billion and currently held by a single wallet, moved to a new address without the requirement of the original private k

The Korean National Tax Service quickly transferred approximately $4.8 million worth of crypto assets after a mnemonic phrase in a press release was not masked, leading to a security breach. This incident is the third cryptocurrency theft in South Korea within the past three months. Experts criticize this as a reflection of law enforcement's insufficient understanding of crypto asset security and emphasize that mnemonic phrases should be strictly protected to prevent asset theft.

Well-known on-chain detective ZachXBT revealed that Axiom employees at the crypto trading platform abused internal tools to spy on users' wallets and may have used this information for insider trading. Axiom has revoked the relevant access rights and stated that an investigation into the misconduct is underway, emphasizing that this does not represent the overall team values. The investigation has sparked heated discussion in the market, and some traders have profited from predicting the event.

Wietse Wind alerts the XRP community about scams involving fake NFTs and phishing attempts targeting wallet holders. He advises users to verify offers, avoid engagement with suspicious accounts, and underscores the importance of security practices to prevent fraud.

Alleged bitcoin extortion turned violent in Seattle as prosecutors say a suspect posed as a postal worker, forced entry into a home, and demanded cryptocurrency. Seattle Couple Terrorized in Alleged Bitcoin Extortion Home Invasion Extortion schemes targeting digital assets such as bitcoin can

U.S. federal agents seized over $61 million in USDT linked to "pig butchering" scams, where victims were lured by fake relationships and promised high crypto returns. Tether cooperated with authorities in asset freezes related to money laundering and fraud cases.

According to analysis company BubblemapsSA's forecast, six newly opened accounts earned approximately $1 million by betting on the U.S. taking action against Iran before February 28. This has raised suspicions of insider trading, a pattern that has appeared in other prediction market cases.

Gate News bot message, a wallet named "majorexploiter" generated $1.25M profit within 5 hours through sports betting. The wallet was created 5 days ago and received $3.28M in funds. 5 hours ago, it spent $1.19M to bet on Stade Rennais FC 1901 winning on 2026-02-28. The bet won shortly after, resulti

The National Tax Agency leaked security information during the seizure of virtual assets, raising suspicions that virtual assets were stolen. The police have received related reports and are currently verifying the situation. This incident could drive reforms in virtual asset protection and security management.

Tether has frozen approximately $4.2 billion in USDT linked to illegal activities, demonstrating its commitment to fighting crypto crime. The action, which hasn't destabilized USDT’s market, emphasizes compliance and enhances user trust in the stablecoin.

Allegations against Axiom Exchange reveal that Broox Bauer exploited internal dashboards to track private wallets for insider trading schemes, targeting high-volume traders. The lack of access controls raises significant security concerns, prompting calls for investigation.

Mark Karpelès, the former CEO of the crypto exchange that filed for bankruptcy, Mt. Gox, has just announced a proposal to execute a hard fork of Bitcoin to recover approximately 79,956 BTC — worth over $5.2 billion at current prices — from a "sleeping" address linked to the exchange's 2011 hack. The proposal is to...

Minnesota is facing issues with scam cryptocurrency vending machines, and law enforcement agencies recommend legislation to ban these devices, while crypto industry stakeholders advocate for increased regulation. The scam machines particularly target low-income seniors, resulting in severe losses for many victims. Although relevant laws have been enacted, their effectiveness is limited, and there are differing opinions among parties on how to prevent scams.

OpenAI has dismissed an employee for using non-public information obtained through work to engage in insider trading on prediction market platforms, violating the company's compliance policies. An on-chain analysis platform has reported that 77 suspicious transactions have been flagged, involving internal OpenAI information. The issue of insider trading in prediction markets continues to attract attention, and the misuse of internal information within the tech industry has become a new challenge.

Tether has frozen approximately $4.2 billion in USDT related to illegal activities, with $3.5 billion this year alone. They also collaborated with the U.S. Department of Justice to freeze $61 million linked to large-scale crypto fraud. USDT's circulating supply has surpassed $180 billion, reinforcing its status as the largest stablecoin. Tether can remotely freeze tokens at law enforcement's request to aid investigations and curb financial crime.

The proposed batch revision (XLS-56) for the XRP Ledger has been found to have a serious logical flaw that could lead to unauthorized ledger modifications. However, since it has never been activated on the mainnet, holder funds remain secure. Developers have marked this revision as unsupported and provided a comprehensive fix. XRP technical analysis shows a rebound from the $1.35 support level, with the next resistance at $1.61.

The Korean National Tax Service was targeted by unknown individuals who transferred 4 million Pre-Retogeum tokens, worth approximately $4.8 million, after releasing a photo containing the 12-word seed phrase for a Ledger hardware wallet. This incident exposed security vulnerabilities in government agencies' digital asset custody. Although the tokens have been returned, it highlights the need to strengthen digital asset protection.

OpenAI has dismissed an employee for allegedly using insider information to conduct insider trading in prediction markets, violating company compliance policies. This is the first time a large tech company has fired an employee over insider trading, sparking concerns about regulation of prediction markets. On-chain data shows multiple suspicious transactions beyond that employee, which may indicate a broader insider information leak issue.

Experts warn that quantum computers powerful enough to break elliptic curve cryptography (ECC) may threaten crypto network security. ECC, crucial for public and private key systems, could be compromised, enabling the retrieval of private keys from public ones. While post-quantum cryptography (PQC) offers promising solutions, implementation challenges remain. Cryptocurrency communities are urged to prepare proactively to safeguard digital asset infrastructure against future quantum threats.