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Ethereum Dust Attacks Surge After Fusaka Upgrade

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Stablecoin-driven dusting attacks are increasingly shaping Ethereum’s daily activity profile. After the Fusaka upgrade, which aimed to cut on-chain data costs and streamline postings from layer-2 networks back to Ethereum, observers say cost reductions have coincided with a rise in tiny-value transfers. In practical terms, dusting is now contributing a meaningful share of on-chain activity, even as the majority of transfers remain economically meaningful.

Key takeaways

  • The Fusaka upgrade lowered data-availability costs on Ethereum, leading to a noticeable uptick in overall transaction volume and active addresses. Daily transactions have exceeded 2 million on average, with a mid-January peak near 2.9 million and about 1.4 million daily active addresses—roughly a 60% uptick from prior baselines.
  • Dusting activity tied to stablecoins now accounts for about 11% of daily transactions and 26% of active addresses on an average day, a sizable jump from pre-Fusaka levels of roughly 3–5% of transactions and 15–20% of addresses.
  • Analyses of USDC and USDT on Ethereum from November 2025 to January 2026 show growing decentralization effects: approximately 43% of dust-related updates involve transfers under $1, and 38% under a single cent, highlighting wallets seeded with tiny amounts.
  • Security researchers flag a surge in address creation linked to dusting, with a reported 170% rise in new addresses during the week of January 12, often tied to low gas fees and the ability to move minuscule sums cheaply.
  • Despite the dusting trend, the majority of stablecoin activity remains organic. Roughly 57% of balance updates exceed $1, suggesting meaningful, economically relevant use alongside the dusting flow.

Tickers mentioned: $ETH, $USDC, $USDT

Sentiment: Neutral

Market context: The surge in on-chain activity coincides with broader shifts in gas economics and the adoption of layer-2 data posting, signaling a transitional period in Ethereum’s usage patterns as users navigate cheaper transaction costs and new data handling efficiencies.

Why it matters

Ethereum’s post-Fusaka landscape presents a nuanced picture for users, developers, and market observers. On the one hand, the upgrade has delivered tangible benefits: lower costs and improved throughput for posting data from layer-2 networks, which translates into more affordable interactions on the main chain. On the other hand, the same efficiency gains appear to have lowered the friction barrier for dusting campaigns—malicious attempts to seed wallets with tiny, nearly worthless amounts designed to contaminate transaction analytics and entice recipients to transact with the wrong counterparties.

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Coin Metrics recently analyzed more than 227 million balance updates for USDC (USDC) and USDt (USDT) on Ethereum from November 2025 through January 2026. The findings show a shift in composition: while a portion of this activity clearly reflects genuine use (payments, settlements, liquidity provisioning), a non-trivial slice now consists of very small transfers that serve as digital footprints, wallet seeding attempts, or poisoning attempts. The data show that 43% of observed dust transfers were under $1, and 38% were under a single penny, underscoring the economic minimalism of many such transactions.

The number of addresses holding small “dust” balances, greater than zero but less than 1 native unit, has grown sharply, consistent with millions of wallets receiving tiny poisoning deposits.

Before Fusaka, stablecoin dust accounted for roughly 3–5% of Ethereum transactions and 15–20% of active addresses. Post-Fusaka, those figures climbed to about 10–15% of transactions and 25–35% of active addresses on a typical day, representing a two- to threefold increase in the dust footprint. Yet, the remaining 57% of balance updates involved transfers above $1, indicating that a significant portion of activity continues to reflect genuine economic activity rather than precautionary or malicious watering of the chain.

Post-Fusaka growth in activity reflects genuine usage, though dust activity is a factor worth noting when interpreting headline metrics.

Dusting has also produced tangible financial losses for some victims. One security researcher noted a reported $740,000 in losses tied to address poisoning attacks. In a striking display of scale, the top attacker executed nearly 3 million dust transfers at a cost of only about $5,175 in stablecoins, highlighting how cheap these techniques can be to deploy relative to the potential impact on victims and analytics platforms.

Dust does not represent genuine economic usage

Analysts emphasize that while stablecoin dust activity has surged, it does not necessarily reflect meaningful growth in demand for goods or services on the network. Rough estimates suggest that around 250,000 to 350,000 daily Ethereum addresses participate in stablecoin dust activity, a non-trivial but still partial window into Ethereum’s overall usage. The broader takeaway is that the network’s growth remains real in many dimensions, even as dust-related actions complicate the interpretation of raw metrics.

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The majority of post-Fusaka growth reflects genuine usage, though dust activity is a factor worth noting when interpreting headline metrics.

What to watch next

  • Monitoring the ongoing impact of Fusaka on gas pricing and data-posting efficiency across layer-2 ecosystems and any subsequent network upgrades.
  • Tracking changes in dusting patterns as wallet hygiene tools and defender initiatives evolve, and as user education campaigns address address-poisoning risks.
  • Observing whether regulatory guidance or industry standards lead to improved transparency around dust activity and its impact on on-chain analytics.
  • Evaluating whether new anti-dust measures or protocol-level mitigations reduce the feasibility or profitability of dusting campaigns.

Sources & verification

  • Coin Metrics, State of the Network, issue 349 (Substack) — analysis of stablecoin balance updates on Ethereum from November 2025 through January 2026.
  • Coin Metrics balance updates for USDC (USDC) and USDt (USDT) on Ethereum — dataset cited in the analysis.
  • Andrey Sergeenkov, observations on new wallet addresses and address-poisoning dynamics in January 2026.
  • Cointelegraph — reporting on address poisoning attacks and the broader dusting phenomenon on Ethereum.

Dusting dynamics and the Fusaka uplift

Ethereum (CRYPTO: ETH) has become a focal point for evaluating how protocol upgrades reshape user behavior and on-chain signals. The Fusaka upgrade, completed in December, broadened the network’s capacity to absorb data from layer-2 bridges and rollups by reducing the cost of posting information. As a result, average daily transactions crossed the 2 million mark, with a sharp jump to nearly 2.9 million in mid-January. Daily active addresses also rose to about 1.4 million, marking a 60% uplift from prior baselines. In this shifting environment, dusting activity has moved from a relatively modest slice of the activity pie to a more prominent feature of the daily ledger, complicating the task of parsing “real” usage from artificial traffic.

Coin Metrics’ analysis, based on a substantial data sample from USDC (USDC) and USDt (USDT), underscores a nuanced narrative. While a meaningful portion of dust transfers is sub-dollar in value, there remains a substantial portion of the activity above traditional thresholds that implies legitimate use—staking, payments, liquidity provisioning, and other routine operations. By juxtaposing post-Fusaka metrics with historical baselines, the report illustrates a two- to threefold expansion in stablecoin dust prevalence, without dismissing the persistent proportionality of bona fide usage on the network. The conversation around dust thus sits at the intersection of efficiency gains, on-chain economics, and security considerations for users navigating a more permissive but also more complex transaction landscape.

As researchers continue to scrutinize the data, the narrative remains that dusting is a real factor in Ethereum’s on-chain activity—but not a wholesale indictment of the network’s growth. The balance between authentic demand and opportunistic traffic will likely shape how developers and researchers frame Ethereum’s success in the months ahead. In the near term, users should remain vigilant about dust-induced address-poisoning vectors and ensure they transact with clear, verified destinations to minimize risk. The broader market will watch how these dynamics influence perceptions of network health, gas economics, and the resilience of security models in the wake of evolving usage patterns.

Risk & affiliate notice: Crypto assets are volatile and capital is at risk. This article may contain affiliate links. Read full disclosure

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Crypto World

Glassnode flags extended sell-side pressure ahead

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OpenAI launches smart contract security evaluation system

BTC is down ~28% this month; Glassnode’s sub‑1 realized P/L ratio signals 5–6 more months of downside pressure.

Summary

  • BTC trades near ~$63k after a sharp February selloff, about 47% below its ~$126k ATH from October 2025.
  • Glassnode’s 90D realized profit/loss ratio has fallen below 1, historically preceding at least 5–6 months where realized losses dominate realized profits.
  • In prior cycles, BTC dropped ~25% over six months in 2022 and >50% over five months in 2018 after this metric flipped sub‑1, implying risk of further drawdown if patterns repeat.

Bitcoin has approached previous highs following a sharp decline in February, though blockchain analytics firm Glassnode has indicated further downward pressure may persist for several months, according to the company’s recent analysis.

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Glassnode reported that Bitcoin’s realized profit/loss ratio, measured as a 90-day moving average, has fallen below 1. The firm stated this metric suggests the decline could continue for an additional five to six months.

In a post on social media platform X, Glassnode cited historical data showing that drops in the Realized Profit/Loss Ratio below 1 have preceded decline periods lasting at least six months. The firm noted that a return above 1 generally indicates a decrease in selling pressure.

The analytics company referenced the 2022 and 2018 bear markets as comparative examples. During the 2022 bear market, Bitcoin declined 25% in value six months after its profit/loss ratio fell below 1, according to Glassnode. Under similar conditions in 2018, Bitcoin experienced a drop exceeding 50% over five months.

Glassnode stated that if historical patterns repeat, the cryptocurrency’s price could continue its downward trend for five months or longer.

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The Realized Profit/Loss Ratio measures the ratio of profits to losses realized on the Bitcoin network, providing insight into market sentiment and selling pressure among holders.

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5 red months, 74% LTH profit rapidly eroding

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5 red months, 74% LTH profit rapidly eroding

BTC is down ~50% from ATH, with 74% LTH profit shrinking as supply in loss hits 50% amid multi‑month selling.

Summary

  • Long-term BTC holders still sit on ~74% average profit, but that margin is compressing as price grinds toward the LTH cost basis near ~$39k.
  • BTC has printed almost five straight red monthly candles after a volatility spike above 150%, while weekly RSI hits one of its most oversold levels ever around the $60k-$65k zone.
  • BTC supply in loss has hit ~10m coins, roughly 50% of the 20m circulating, a capital destruction level that has historically coincided with bear market bottoms.

Bitcoin long-term holders currently hold an average profit of approximately 74%, though that margin continues to decline as the cryptocurrency’s price moves closer to their cost basis, according to CryptoQuant analyst Darkfost.

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The analyst noted that historical bear market cycles have been characterized by prices breaking below the long-term holder cost basis, triggering capitulation phases marked by realized losses of around 20%. Long-term holders are defined as investors known to be less sensitive to short-term price fluctuations, Darkfost stated.

Market recovery and bull phase entry have historically occurred only after such capitulation events, according to the analysis.

Glassnode reported that the 90-day moving average of the Realized Profit/Loss Ratio has fallen below 1, confirming a transition into an excess loss-realization regime. The blockchain analytics firm stated that these bearish conditions have historically persisted for at least six months before liquidity returns to markets.

Analyst James Check reported that Bitcoin has recorded nearly five consecutive red monthly candles following the largest volatility spike of the current cycle. Check observed that one-week realized volatility spiked above 150%, a level typically associated with capitulation events, and that weekly RSI has reached one of the most oversold readings in Bitcoin’s history. A significant amount of Bitcoin has migrated to new holders in a high price range this year, according to Check’s analysis.

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Bitcoin supply in loss reached 10 million coins, the fourth-highest reading on record, analyst James Van Straten reported. Van Straten noted that circulating supply will reach 20 million Bitcoin next week, with 50% held at a loss. Historical patterns suggest such capital destruction levels are sufficient for a bear market bottom, according to Van Straten.

Bitcoin experienced a minor price rebound during early Asian trading hours, though bearish sentiment remains dominant in the market. The price movement formed another lower high while a key support level continues to hold, according to technical analysis.

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Anchorage Digital Buys Strategy STRC as Stock Becomes Most-Shorted

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Anchorage Digital Buys Strategy STRC as Stock Becomes Most-Shorted

Crypto bank Anchorage Digital said it now holds Strategy’s perpetual preferred security STRC on its balance sheet, adding an institutional backer to Michael Saylor’s Bitcoin treasury company at a time when Wall Street traders are increasingly betting against it.

In a Wednesday post on X, Anchorage co-founder and CEO Nathan McCauley said the purchase shows alignment between two companies built around Bitcoin (BTC) infrastructure and corporate treasury adoption. “Conviction compounds. Institutions don’t just talk about Bitcoin, they structure around it,” McCauley wrote.

“When the company that operationalizes Bitcoin infrastructure puts capital alongside the company that operationalized the Bitcoin treasury strategy…that’s a signal,” he added. Anchorage did not reveal the size or timing of the position.

According to Strategy’s website, STRC is a Nasdaq-listed perpetual preferred security marketed as a short-duration, high-yield instrument. The shares pay an 11.25% annual dividend distributed monthly in cash. Capital raised through the instrument has historically financed the firm’s continued Bitcoin accumulation.

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Related: Michael Saylor says quantum threat to Bitcoin is more than 10 years away

Strategy becomes Wall Street’s most-shorted stock

Anchorage’s purchase comes as Strategy has climbed to the top of Goldman Sachs’ list of most-shorted large-cap US equities by short interest as a percentage of market capitalization. A year ago, it did not rank among the top 50. The company began rising on the list in late 2025 as its share price weakened even before Bitcoin peaked in October.

Strategy becomes the most shorted large-cap stock. Source: Goldman Sachs

Short selling involves borrowing shares and selling them with the expectation of repurchasing later at a lower price. Losses can grow if the stock rises.

Strategy functions as a leveraged public-equity proxy for Bitcoin. It issues securities and deploys the proceeds into BTC. Gains can amplify during rallies, while downturns magnify pressure on the share price.

The company currently holds 717,722 Bitcoin worth about $46.68 billion at current market prices. On Monday, it announced another purchase, acquiring 592 BTC for $39.8 million. The coins were acquired at an average cost of roughly $76,020, leaving the company sitting on an estimated $7 billion unrealized loss with Bitcoin trading near $66,000.

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Related: Michael Saylor hints at Strategy’s 100th Bitcoin buy

Strategy plans debt-to-equity shift

Last week, Strategy founder Michael Saylor said the company intends to convert roughly $6 billion in convertible bond debt into equity, replacing repayment obligations with newly issued shares. The change would lower leverage on the balance sheet by turning bondholders into shareholders, though it could dilute existing investors.