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Trending Token Price Prediction ChallengeHTX 13th-Anniversary CarnivalHTX Creation Challenge — Post and Win 1,500U MoonPay Acquires Rhythm to Expand Into Onchain Trading MoonPay is expanding deeper in

 Trending Token Price Prediction Challenge

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MoonPay Acquires Rhythm to Expand Into Onchain Trading
MoonPay is expanding deeper into onchain trading with the acquisition of Rhythm, a platform built to help traders find opportunities, execute transactions and manage risk across fast-moving crypto markets.

The deal brings Rhythm's technology and its three co-founders, Joseph Murphy, James Miller and Lincoln Barnett III, into MoonPay.

The acquisition also closes a loop that began last year. Rhythm was the first company backed by MoonPay Labs in 2025, giving MoonPay an early look at the platform before ultimately deciding to bring the team and technology in-house.

For MoonPay, the deal adds another piece to a business that has expanded well beyond its original role helping users buy and sell crypto with fiat. The company now operates across payments, trading, stablecoins and onchain infrastructure, serving more than 30 million customers in 180 countries and over 1,500 enterprise clients.

From Trading Signals to Execution

Rhythm was built around a persistent problem in onchain markets: traders often need multiple tools to discover assets, analyze opportunities, execute trades and manage risk. The platform combines those functions, providing trading signals alongside automation, execution and risk-management tools.

That technology now becomes part of MoonPay's growing trading infrastructure. The acquisition also brings a team with experience building high-frequency DeFi trading systems and other transaction-heavy software.

Rhythm Chief Product Officer Joseph Murphy previously co-founded Minty Finance, where he helped build high-frequency DeFi trading software responsible for more than $7 million in executed trades.

Before that, Murphy founded Mirage Software, an automated checkout technology company that facilitated more than $50 million in customer spending.

Rhythm CEO Lincoln Barnett III has been active in DeFi trading while working with st


MoonPay Acquires Rhythm to Expand Into Onchain Tra

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$SOL - Solana Neobank Avici Exploited for 652K, Token Plunges 44% Avici's card vault exploit drains 652K despite user-only access claims. Hack hits Solana neobank's non-custodial vaults, AVICI token c

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Trending Token Price Prediction ChallengeHTX 13th-Anniversary CarnivalHTX Creation Challenge — Post and Win 1,500U Attacker Drains More Than $1 Million From Avici Users In Live Solana Neobank AttackAn

Attacker Drains More Than $1 Million From Avici Users In Live Solana Neobank AttackAn attacker is draining customer funds from Avici, the Solana neobank that issues Visa cards backed by users' crypto, and had taken more than $1 million by press time.

Avici sells its card as self-custodial, with balances held in onchain accounts users authorize through passkeys instead of seed phrases. The attacker went through that authorization layer, calling an instruction that registers a new administrator on a user's collateral account and then withdrawing the balance.

The attacker's wallet, FVNFzq[…]QnCEj, held 10,005.03 $SOL worth about $1.07 million at 18:58 UTC, plus roughly $11,600 in $USDC and $USDT, according to Solana RPC data queried by The Defiant. Its $SOL balance grew by about 2,595 tokens, some $277,000, in the previous 11 minutes.

Avici said in a post at 18:42 UTC that it is "working directly with all relevant partners to resolve it and will share updates as soon as we have more information." The company has not said how the funds were taken, how many accounts are affected, or whether it will make users whole.

Add Admin, Then Withdraw

The wallet was funded with 1.79 $SOL bridged through deBridge at 13:40 UTC and sat idle for three hours. Its first call against Avici's contracts landed at 16:49:48 UTC. It has since signed 14,672 transactions, 2,344 of which failed.

The pattern repeats per victim across three instructions, according to transaction logs. The wallet first calls SubmitSignatures on Avici's authorization program, in a transaction that also invokes Solana's Ed25519 signature-verification precompile. It then calls AddCollateralAdmin on Avici's collateral program, and finally WithdrawCollateralAsset on the same program.

In one transaction reviewed by The Defiant, a single WithdrawCollateralAsset call moved 2,346.77 $USDT from a user’s collateral account to the attacker's token account. The wallet periodically swa



Attacker Drains More Than $1 Million From Avici Us

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