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This week’s cryptocurrency developments, as covered in Reuters’ Crypto Weekly report, reflect a complex mix of regulatory caution, market recovery signals, and geopolitical tensions. European Central 

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1$ Margin TradeBILL: Human-AI Collaboration NetworkZEST: Bitcoin Lending ProtocolOpenAI has granted some of Japan's largest banks access to its newest GPT-5.5 model for cyber defense, Finance Minister

OpenAI has granted some of Japan's largest banks access to its newest GPT-5.5 model for cyber defense, Finance Minister Satsuki Katayama said Friday.

Key Points:

OpenAI has opened access to its GPT-5.5 model for some Japanese banks to help blunt cyberattacks, the finance minister said Friday.

MUFG, Sumitomo Mitsui and Mizuho are the expected early users, reached through a vetted channel OpenAI calls Trusted Access for Cyber.

The step parallels Japan's separate plan to deploy Anthropic's Claude Mythos, hinting at an emerging market for state-backed AI defense.

OpenAI Hands Japan's Megabanks GPT-5.5

Katayama said the access would help lenders respond to a fast-rising wave of attacks, speaking after a Tokyo meeting with OpenAI chief strategy officer Jason Kwon.

The release of AI that can write high-level code has handed hackers an unusual ability to find weak points and exploit them faster. She called early access one of the few real defenses, and did not name the institutions involved.

Local reporting named MUFG Bank, Sumitomo Mitsui Banking Corp and Mizuho Bank as the expected first users, with the model reserved for trusted partners and rated on par with Anthropic's rival system. OpenAI is delivering the cyber variant through a vetted program it calls Trusted Access for Cyber, which keeps the most capable tools with verified defenders.

Also Read: Kalshi Wins CFTC Approval For First U.S. Bitcoin Perpetual Futures

Officials Frame GPT-5.5 As Financial Defense

For the banks, the immediate goal is operational. Officials want the model pointed at their own systems, to spot intrusions and weak points before attackers can reach them first. The early effect is narrow but real: three of the world's largest lenders will soon have a frontier model aimed at their own defenses.

The logic is gatekeeping. A model strong enough to find software flaws at scale is, by the same measure, d

OpenAI has granted some of Japan's largest banks a

ZEST: Bitcoin Lending Protocol

Direxion files for 92 ETFs in a single batch, potentially setting a world record The filing arrives during a period of extraordinary activity in the ETF space, particularly around digital assets. Acco

Direxion files for 92 ETFs in a single batch, potentially setting a world record The filing arrives during a period of extraordinary activity in the ETF space, particularly around digital assets. According to Bloomberg Intelligence analyst James Seyffart, 92 crypto ETFs are currently awaiting SEC approval as of late August 2025, a number that has ballooned rapidly.
Twenty new applications were submitted in just four months alone, reflecting an institutional appetite for altcoin exposure that has moved well beyond Bitcoin and Ethereum.

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Direxion files for 92 ETFs in a single batch, pote

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Gravity Bridge is facing scrutiny after blockchain security researchers reported a suspected exploit. That drained approximately $5.4 million from the cross-chain bridge on May 30. According to on-chain analysts Specter and PeckShield, the incident may have been caused by a compromised bridge contract key. This allows an attacker to withdraw millions of dollars in assets.



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BILL: Human-AI Collaboration Network

Summer Game Fest is about to reset expectations for game reveals, trailers, and playable demos. If you care about Web3, the practical question is not whether crypto belongs at the show—it’s whether an

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Grayscale Files Updated S-1 For Hyperliquid Staking ETF, What Do Experts Say?
Grayscale has submitted the amended Form S-1 for its Hyperliquid Staking ETF.
The filing still doesn't mention fee details for the HYPE ETF.
However, it led to questions around the $130 million proposed seed capital.
Grayscale has filed a second amended registration statement for its bid to launch a Hyperliquid staking ETF in the U.S. It comes after the fourth amendment, which included an increase in its investment objective.

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Claim1,200 USDT in the Monthly Creation ChallengePost To Earn BonusHTX Creation Challenge — Post and Win 1,500U 💥The initiative leverages a critical regulatory breakthrough achieved earlier, following

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The initiative leverages a critical regulatory breakthrough achieved earlier, following joint agency guidance that designated $XLM as a digital commodity. This status removes the compliance ambiguity that previously restricted conservative institutional desks.
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According to institutional data, Stellar's real-world asset (RWA) footprint has already crossed major benchmarks, fueled by live issuances from asset management firms like Franklin Templeton and Amundi. The addition of DTCC infrastructure solidifies Stellar's position as a primary enterprise ledger

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KNC talk is cautious: Square sentiment is bearish/concerned with low engagement, focused on trade closures and shorting. On May 14 KyberSwap launched Smart Settlement (lower slippage). On May 26 liqui

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Bitcoin Trading Enters New Era With SEC-Approved Nasdaq Index Options

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Microsoft to Discontinue Using Claude: Too Expensive, or a Calculated Move?

New York Lawsuit Takes Aim At 3.79 Million Dormant Bitcoin

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