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$44B BTC blunder puts South Korea regulators on alert

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South Korea’s top financial watchdog is stepping up oversight of crypto markets days after a local exchange mistakenly distributed billions of dollars worth of bitcoin to users.

The Financial Supervisory Service said Sunday it will launch planned investigations into “high-risk” practices that undermine market order, including large-scale price manipulation by so-called whales, trading schemes tied to suspended deposits and withdrawals, and coordinated pump tactics fueled by social media misinformation.

The watchdog also said it plans to build tools that automatically extract suspicious trading patterns by the second and minute, alongside text-analysis systems using artificial intelligence to flag potential market abuse.

The announcement follows a widely reported exchange error last week in which some users of Bithumb, among the country’s biggest exchanges, were mistakenly credited with at least 2,000 bitcoin each instead of small promotional rewards, a blunder estimated at roughly $44 billion at the time.

BTC prices dropped 30% compared to the global average at the time, as some recipients tried to sell the assets. The exchange had restricted trading and withdrawals for the 695 affected customers within 35 minutes of the erroneous distribution on Friday.

Regulators said the incident exposed the “vulnerabilities and risks” of virtual assets and signaled they could conduct on-site inspections of exchanges if irregularities are found in internal control systems.

Beyond market manipulation, the FSS said it will introduce punitive fines for IT incidents across the financial sector and raise the security accountability of chief executives and chief information security officers, a shift that could have direct implications for crypto trading platforms.

The agency also confirmed it has set up a preparatory team for the Basic Digital Asset Act, which would expand Korea’s regulatory framework beyond the first phase of crypto rules.

The crackdown plan reflects a broader push by President Lee Jae-myung to stamp out what he has called “cruel financial practices,” with the FSS also outlining measures to strengthen enforcement against fraud and expand tools to combat voice phishing.

Tether’s gold stash tops $23 billion as buying outpaces nation states, Jefferies says

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Tether, the crypto firm behind the world’s most popular stablecoin , continued its gold hoarding over the past month, ranking within the top 30 global owners of the metal and surpassing several sovereign nations, according to a Sunday report from Wall Street investment bank Jefferies.

The stablecoin issuer’s gold reserves rose to an estimated 148 tonnes by Jan. 31, valued at roughly $23 billion, after buying about 26 tonnes in the last quarter of 2025 and adding another 6 tonnes in January, Jefferies analysts said.

Jefferies estimates show Tether’s quarterly gold buying exceeded that of most individual central banks, trailing only Poland and Brazil during that period.

At current levels, Tether’s holdings exceed those of countries such as Australia, the United Arab Emirates, Qatar, South Korea and Greece, placing the crypto firm among the top 30 holders of bullion worldwide and one of the largest non-sovereign buyers, the analysts said.

The 148 tonnes of bullion is held as reserves backing both its U.S. dollar-pegged stablecoin USDT and its gold-backed token XAUT. But the company may hold more gold than disclosed, the report added.

Because Tether is privately held, the figures represent a minimum estimate of its total gold exposure, with undisclosed additional purchases likely made on the company’s balance sheet.

According to the USDT’s fourth quarter attestation, some $17 billion of gold was in the reserves, amounting to 126 tonnes as of year-end gold prices.

XAUT’s supply grew to 712,000 tokens worth $3.2 billion by the end of January, an increase of 6 tonnes of gold backing the tokens. CEO Paolo Ardoino told CoinDesk in an October interview that the gold-back enjoyed strong retail demand mainly from emerging markets.

The accumulation coincided with a record-breaking rally in gold, topping $5,000 per ounces last month and advancing nearly 50% since September. The driving forces behind the move is central bank demand, rising long-term government bond yields and efforts by some investors to reduce reliance on the U.S. dollar.

The company’s buying spree may continue, Jefferies noted. Tether CEO Paolo Ardoino said the company plans to allocate 10%-15% of its investment portfolio to physical gold, formalizing a strategy that has already played out over several years.

Tether’s investment portfolio was valued at $20 billion as of the end of last year, CoinDesk reported.

Read more: Tether is buying up to $1 billion of gold per month and storing it in a ‘James Bond’ bunker

ENS Abandons Its planned Namechain L2, Citing Drastically Lower Gas Costs

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Ethereum domain name service provider ENS has canceled plans to launch a layer-2 as part of its ENSv2 upgrade, opting instead to launch a revamped protocol directly on Ethereum. 

In a blog post on Friday, ENS lead developer nick.eth explained that the decision was partly due to a “99% reduction in ENS registration gas costs over the past year” amid a number of important upgrades to the Ethereum network.

“Put simply: Ethereum L1 is scaling, and it’s scaling faster than almost anyone predicted two years ago. The recent Fusaka upgrade raised the gas limit to 60 million, a 2x increase from the beginning of 2025,” nick.eth said, adding: 

“Now Ethereum core developers are targeting 200 million gas limit targets in 2026, a 3x increase from today, and that’s before any ZK upgrades land.”

The Fusaka upgrade, one of the most recent Ethereum upgrades that went live in early December, has helped Ethereum drive down gas fees due to its significant scaling capabilities for both the L1 and the ecosystem of L2s. 

Blog post announcing changes to ENS’ upgrade plans. Source: ENS

ENS initially announced its L2 Namechain in November 2024, stating that it would make it easier and cheaper for users to register domain names through rollups. 

Nick.eth emphasized that the context has changed dramatically and that it is now viable to build directly on L1 rather than opt for a full-fledged L2 to reduce costs. 

“Huge L1 scalability was not part of the Ethereum roadmap, and the message was clear that L2s were the way forward. We needed to meet our users where the ecosystem was heading, and that meant building Namechain,” he said.

Related: Arbitrum, Optimism and Base weigh in after Vitalik questions L2 scaling model

With plans for Namechain now gone, the ENS lead developer noted that the project is still working on significant performance and utility improvements via ENSv2, while the protocol will remain highly interoperable with L2s.