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Polymarket user pockets $400K betting on ZachXBT investigation

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Crypto Breaking News

U.S. lawmakers and regulators are sharpening their focus on prediction markets as a high-profile insider-trading narrative unfolds around Polymarket and Axiom. At the center is a claim by on-chain investigator ZachXBT that an Axiom employee—Broox Bauer—and others allegedly used internal tools to access sensitive user data and execute profitable insider trades, a practice the researcher says may have persisted since early 2025. The timing is notable: Polymarket traders had placed large bets on the outcome of ZachXBT’s disclosures, with activity approaching tens of millions of dollars. In response, Axiom said it has removed access to the implicated tools and pledged to investigate and hold responsible parties to account, framing the episode as a test of governance and user protection within the evolving prediction-market ecosystem.

Key takeaways

  • On-chain sleuth ZachXBT alleged that an Axiom employee, Broox Bauer, and others conducted insider trading by leveraging internal tools to access private user data, with the investigation dating back to early 2025.
  • Axiom stated it has cut off access to the questioned tools and committed to an internal probe, stressing that the incident does not reflect the broader team or its user-first ethos.
  • Polymarket bettors wagered nearly $40 million on the investigation’s outcome, with at least one user profiting about $400,000 and others winning more than $9.7 million on the contract asking which crypto company ZachXBT would expose.
  • The episode arrives as U.S. regulators debate the proper reach of federal oversight over prediction markets, with CFTC Chair Michael Selig asserting exclusive jurisdiction and signaling potential clashes with state authorities.
  • The case adds to a broader tightening of governance norms and data-access controls across crypto prediction platforms, underscoring regulatory risk and the need for transparent, auditable processes.

Market context: The unfolding events occur against a backdrop of ongoing regulatory scrutiny of prediction markets, where federal and state authorities have historically juggled distinct jurisdictions. The CFTC has stressed federal authority, while some states have pursued their own enforcement actions, creating a patchwork that operators must navigate as markets rely on on-chain data and user-submitted contracts.

Why it matters

The allegations touch on core governance questions for crypto-enabled prediction platforms. If internal tools can be leveraged to access user data for trading advantage, it raises serious concerns about user privacy, algorithmic transparency, and the integrity of market signals. Platforms that rely on public-facing interfaces for forecasting outcomes must demonstrate robust controls, independent audits, and clear incident-response playbooks to preserve trust among participants who treat these markets as both entertainment and hedged exposure to real-world events.

From a market-structure perspective, the episode illustrates how prediction markets intersect with fast-moving on-chain analytics. The ZachXBT disclosures, if verified, would imply a potential mismatch between platform-level governance and user expectations, potentially inviting regulatory actions if risk controls are perceived as lax or opaque. For investors and builders, the case underscores the importance of transparent data-access policies, strict separation between product tooling and private data, and incident disclosures that are timely and verifiable.

On the regulatory front, the scenario underscores the tension between federal authority and state initiatives in enforcement. The CFTC chair’s comments about exclusive jurisdiction suggest a preference for centralized oversight, which could influence how prediction-market platforms structure offerings, disclosures, and compliance programs going forward. Traders and operators should monitor not only the outcomes of internal investigations but also any subsequent regulatory guidance that clarifies permissible use of internal tools, data access, and administrative controls within prediction markets.

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Ultimately, the incident matters because it tests the resilience of prediction markets as legitimate, auditable venues for price discovery on real-world events. If platforms fail to demonstrate robust safeguards, participants may migrate to environments with stronger governance or shifted risk profiles. Conversely, transparent corrective steps that restore trust—such as rapid suspension of the implicated tools, independent audits, and clear accountability measures—could reinforce the long-term appeal of crypto-enabled prediction markets as competitive and innovative financial infrastructure.

What to watch next

  • Updates from Axiom’s internal investigation, including findings and any leadership actions taken against implicated personnel.
  • Any formal statements or enforcement actions from U.S. regulators, particularly the CFTC, regarding prediction-market governance and data-access policies.
  • Responses from Polymarket and other platforms about governance changes, risk controls, and disclosures in light of these revelations.
  • Further disclosures from ZachXBT or other researchers that could corroborate or challenge the claims of insider trading and tool misuse.
  • New disclosures or developments around the contract categories that speculated on the case, including volumes and settlement outcomes.

Sources & verification

  • ZachXBT’s X post alleging insider trading by an Axiom employee and others (link: https://x.com/zachxbt/status/2027016064534757659).
  • Axiom’s X post acknowledging the incident, stating access to tools has been removed and that the team will investigate (link: https://x.com/AxiomExchange/status/2027018976929423583).
  • Polymarket bettors’ activity surrounding the ZachXBT insider-trading exposure, including bets near $40 million (link: https://cointelegraph.com/news/polymarket-bets-zachxbt-insider-trading).
  • CFTC Chair Michael Selig’s remarks on exclusive jurisdiction over prediction markets (link: https://cointelegraph.com/news/cftc-michael-selig-defending-prediction-markets).
  • Related coverage on Kalshi’s governance and insider-trading-related actions (link: https://cointelegraph.com/news/kalshi-booted-politician-youtuber-insider-trading).

Market reaction and key details

The contemporary disclosure cycle around insider-trading claims in crypto prediction markets marks a pivotal moment for the sector. As the industry grapples with how to regulate and supervise on-chain prediction activities, observers are watching closely how platforms respond to allegations of improper data access and trading influence. The rapid public responses from Axiom reflect a recognition that reputational risk in this space can translate into regulatory risk quickly, especially when user trust is at stake and the outcomes of investigations are uncertain.

Why it matters for users, builders, and the market

For users, the episode reinforces the importance of data governance, transparent tool access, and clear incident reporting. Any perception that insiders could exploit tools to gain an edge undermines confidence in the integrity of the market and may deter participation, especially from risk-averse traders who rely on credible price signals. For builders and operators, the episode highlights the value—and the cost—of implementing verifiable controls, independent audits, and robust user-privacy protections as a competitive differentiator in a crowded field of prediction platforms.

From a market-wide lens, the incident sits at the intersection of regulatory clarity and technological experimentation. The CFTC’s insistence on federal jurisdiction signals that there could be a stricter, more standardized framework for how prediction markets operate in the United States, potentially influencing product design, KYC/AML considerations, and inter-exchange cooperation. Participants should expect a period of heightened scrutiny across platforms as governance models evolve and as regulators balance innovation with the protection of market integrity and consumer data.

What to watch next

  • Formal disclosures from Axiom detailing the investigation’s scope and any disciplinary actions.
  • Regulatory updates or new guidance from the CFTC and state authorities on prediction-market governance and data access.
  • Material changes to Polymarket’s or other platforms’ risk controls and user-privacy policies.
  • Additional research or forensic findings from ZachXBT or other researchers that corroborate or challenge the claims.

Sources & verification

  • ZachXBT’s X post alleging insider trading by a named Axiom employee and others (link: https://x.com/zachxbt/status/2027016064534757659).
  • Axiom Exchange’s official comment and tool-access suspension (link: https://x.com/AxiomExchange/status/2027018976929423583).
  • Polymarket bet coverage on ZachXBT insider-trading exposure (link: https://cointelegraph.com/news/polymarket-bets-zachxbt-insider-trading).
  • CFTC leadership remarks on exclusive jurisdiction over prediction markets (link: https://cointelegraph.com/news/cftc-michael-selig-defending-prediction-markets).
  • Related coverage on Kalshi’s enforcement actions and governance (link: https://cointelegraph.com/news/kalshi-booted-politician-youtuber-insider-trading).

What the investigation changes for the landscape of prediction markets

The case underscores the delicate balance prediction-market platforms must strike between enabling rapid, data-driven bets and enforcing robust controls that prevent misuse of internal tools. It also highlights the evolving role of on-chain researchers in surfacing governance and ethics concerns, and the extent to which platforms must respond quickly and transparently to preserve market integrity and participant confidence. As regulators intensify their focus, the sector will likely see accelerated moves toward standardized governance practices, clearer lines of responsibility, and more explicit privacy safeguards—elements that could determine whether prediction markets remain a vibrant, trust-worthy corner of the crypto ecosystem.

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

DeFi exploiter targets lending protocols with oracle tricks

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DeFi exploiter targets lending protocols with oracle tricks

A serial hacker is targeting DeFi lending protocols, with approximately $3.5 million stolen so far. In the latest incident, they exploited an oracle misconfiguration in lending platform Ploutos Money, leading to a loss of almost $400,000.

Crypto security firm CertiK noted that the project appears to have deleted its website and social media presence.

Read more: YieldBlox lending pool hit by $10M hack on Stellar

According to analysis by blockchain auditor BlockSec, Ploutos Money used Chainlink’s bitcoin (BTC)/USD feed as an oracle for USDC price. “The attacker was able to borrow 187 ether (ETH) by posting only eight USDC as collateral,” the post explains.

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BlockSec also points to the timing of the exploit, just one block after the misconfiguration was confirmed. While the firm suggests “the attacker closely monitored and acted on the configuration change,” many of the replies to CertiK and BlockSec’s posts suspect insider involvement.

Pseudonymous blockchain investigator Tanuki42 linked the exploiter to at least four other hacks, including two million-dollar losses for Moonwell.

Last week, Moonwell was left with $1.8 million of bad debt when a misconfigured oracle returned a cbETH price of $1.12 instead of approximately $2,200. The code change which caused the loss had been co-authored by Claude Opus 4.6, alongside a Moonwell contributor.

Read more: DeFi, meet Claude: Moonwell’s ‘vibe-coded’ oracle in $1.8M blowup

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The (bad) luck of the draw

Also today, in an apparently unconnected attack, Ethereum-based “private ZK lottery,” FOOM CASH, lost $1.6 million when its “broken ZK verifier” was compromised.

According to blockchain security firm QuillAudits, the project lost $1.3 million on Ethereum and $316,000 on Base. The firm’s analysis explains that the project’s use of its ZK verifier was flawed.

In setting two constants to the same value, “anyone can compute it [the verification equation], no secret needed.”

A similar attack affected Veil.Cash, a privacy protocol on Base, last week. However, losses were small at only 4.5 ETH, of which 2 ETH were recovered by white hats Decurity.

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Got a tip? Send us an email securely via Protos Leaks. For more informed news and investigations, follow us on XBluesky, and Google News, or subscribe to our YouTube channel.

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Why XRP Spot Buying Is Skyrocketing While Futures Open Interest Slumps

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XRP Leads Altcoin Inflows While Bitcoin Investment Products Struggle


Bitrue reported a 212% surge in spot buying for XRP on February 26, with buy orders more than doubling sell pressure.

Bitrue said on February 26 that it recorded a 212% jump in XRP spot buying as institutional investors continued allocating capital through newly launched XRP exchange-traded funds (ETFs).

The exchange linked the spike to roughly $1.1 billion in cumulative ETF inflows, arguing that steady demand from funds and retail traders could tighten available supply in the months ahead.

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Spot Buying Jumps as ETF Inflows Build

In a post on X, Bitrue said XRP buy orders on its platform outpaced sell orders by more than two to one.

“We recorded a 212% increase in XRP spot purchase volumes, outpacing the sell side by over 2x,” the exchange posted on X.

It attributed the imbalance to sustained institutional accumulation since the debut of XRP ETFs, which it claims have drawn $1.1 billion in net assets, even though data from SoSoValue showed there have been muted ETF flows in recent days.

However, the derivatives market tells a different story. According to CryptoQuant, XRP futures open interest has fallen across major platforms over the past 90 days, with Binance recording a decrease of 7.7 million XRP and Bybit showing a larger reduction of around 12 million tokens. Furthermore, the three-month moving average for XRP futures volume has dropped to its lowest level since November 2024, settling at approximately $87 billion.

Looking at XRP’s broader market structure, it was trading around $1.44 at the time of writing, up nearly 5% in the last 24 hours and about 2% during the week. Even so, the token is still down more than 23% over the past month and almost 38% across the past year, far below its July 2025 all-time high of $3.65.

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Cooling Leverage Meets Steady Spot Demand

The divergence between spot accumulation and falling derivatives activity suggests a shift in market composition rather than uniform bullish momentum. Open interest now stands near $2.37 billion per CoinGlass figures, and the contraction in leveraged positions may reflect traders reducing risk after months of volatility.

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From a price standpoint, XRP remains range-bound between $1.38 and $1.48 over the past 24 hours. One market watcher, CasiTrades, flagged resistance around $1.40 and $1.65, with support near $1.11 and $0.87. According to them, a sustained move above those resistance levels would likely require stronger follow-through from ETF inflows and broader market participation.

As such, considering the broader data, Bitrue’s reported spike in spot buying highlights firm exchange-level demand, but the wider data show a market that is rebalancing rather than accelerating.

Nonetheless, the crypto exchange is predicting that growing retail and corporate support could lead to a supply deficit that may push up the Ripple token’s performance enough to beat major rivals this year.

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“With support increasing from retail and institutional levels, Bitrue is forecasting a potential supply squeeze, which will likely result in XRP outperforming key competitors over Q2 2026,” wrote Bitrue.

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Ether Hits $2.1K But Holding It Requires Two Factors

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Cryptocurrencies, Ethereum, Technology, Markets, Cryptocurrency Exchange, Price Analysis, Futures, Market Analysis, Altcoin Watch, Ether Price

Ether (ETH) price reached a weekly high of $2,150 on Thursday, which is a key level for large ETH holders, but volatility in the crypto and stock markets continues to catalyze corrections below $2,000.

A daily close above $2,100 remains important because that level aligns with the cost basis and realized price of wallets holding 100,000 or more ETH. Realized price tracks the last moved price of coins, offering a profitability gauge rather than a spot reference.

Cryptocurrencies, Ethereum, Technology, Markets, Cryptocurrency Exchange, Price Analysis, Futures, Market Analysis, Altcoin Watch, Ether Price
ETH Realized price by balance cohorts. Source: CryptoQuant

Since 2020, Ether has traded below this whale cohort’s realized price only a handful of times, most notably during the 2022 bear market. The chart shows that the price has regularly recovered after the realized price level was tested as support.

Futures market analyst Dom described the setup as “a good clean look for the whole market,” pointing to an early-week sweep near the range lows. Dom said that the price tapped the one-month rolling VWAP (volume-weighted average price) and the value area high, the upper boundary of the price range where most of the volume traded over the past month. 

Cryptocurrencies, Ethereum, Technology, Markets, Cryptocurrency Exchange, Price Analysis, Futures, Market Analysis, Altcoin Watch, Ether Price
Ether price analysis by Dom. Source: X

The VWAP measures the average traded price weighted by volume. Acceptance over $2,140 may mark a shift in short-term order flow, while failure to retain a higher level keeps the price inside the established range.

Related: Longest Ether dip since 2022 ignored by whales: What’s next for ETH?

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$1,800 remains the key price level to watch

CoinGlass data highlighted short liquidations of over $220 million over the past two days, clearing overhead leverage. Now, roughly $2.66 billion in cumulative long liquidation exposure sits near $1,800, forming a liquidity pocket below the price.

Cryptocurrencies, Ethereum, Technology, Markets, Cryptocurrency Exchange, Price Analysis, Futures, Market Analysis, Altcoin Watch, Ether Price
ETH exchange liquidation map. Source: CoinGlass

Crypto analyst Pelin Ay pointed to a notable shift in funding rates on Binance. ETH funding flipped sharply negative earlier this month as aggressive short positions piled in alongside Ether price weakness. Following Tuesday’s drop below $1,800, the funding rate has since swung back into positive territory at 0.23%, a sign that late shorts were squeezed out of their positions.

Cryptocurrencies, Ethereum, Technology, Markets, Cryptocurrency Exchange, Price Analysis, Futures, Market Analysis, Altcoin Watch, Ether Price
Ether funding rate on Binance. Source: CryptoQuant

However, with the funding rate now elevated, traders’ positioning appears to be tilting toward the long side. If this trade becomes overcrowded, it raises the risk of a potential long squeeze near the $1,800 level once again, especially if the price momentum stalls or reverses.

Market analyst IncomeSharks identified three technical hurdles, including repeat super trend rejections and a channel resistance near $2,250. 

Cryptocurrencies, Ethereum, Technology, Markets, Cryptocurrency Exchange, Price Analysis, Futures, Market Analysis, Altcoin Watch, Ether Price
ETH daily chart analysis by IncomeShark. Source: X

The SuperTrend uses volatility, measured by the average true range (ATR), to define the trend direction. When the price trades below the indicator, the line flips red and acts as dynamic resistance. On the chart above, each rebound has been rejected at the red band, signaling that sellers remain in control.

The analyst added that traders should watch whether Ether revisits or finds renewed buying interest near the April lows around $1,500, a level that resides between a weekly demand zone of $1,691 and $1,384, before any sustained move above $2,500 can take shape.

Cryptocurrencies, Ethereum, Technology, Markets, Cryptocurrency Exchange, Price Analysis, Futures, Market Analysis, Altcoin Watch, Ether Price
Ether weekly chart. Source: Cointelegraph/TradingView

Related: Ethereum reclaims $2K as volatility spike backs ETH price recovery