Today’s crypto headlines centered on security and institutional expansion: an exchange restricting services for a subset of users while assuring asset safety; a new standards body forming to confront quantum threats to Bitcoin; fresh technical claims from Google about a quantum chip; and reports that Ripple has moved into leveraged ETF financing.
Bitget discontinues services for some users, stresses PoR and withdrawals remain available
On October 17, 2026, derivatives exchange Bitget said it would discontinue services for certain users as part of a one-time process. The company said the platform is operating normally and that user funds remain secure. Affected customers will be notified through email, in-app messages or push notifications about deadlines and withdrawal procedures. Bitget pointed users to its Proof of Reserves (PoR) protocol to verify assets, noting monthly snapshots, a Merkle tree structure and a “MerkleValidator” tool.
The announcement follows a prior incident reported on September 25, when Bitget confirmed unauthorized transfers and temporarily suspended withdrawals. A security firm estimated the stolen funds at about $388 million. In its October 17 communication, Bitget did not change previous loss figures but emphasized withdrawal processes and transparency through its PoR instruments.
New Quantum Alliance aims to define ‘quantum-ready’ standards for Bitcoin
On October 15, 2026, nine organizations, including Quantus, Postquant Labs, Midnight Foundation, Keystone, Abelian and Hacken, launched the Quantum Alliance, an open standards body modeled after the Internet Engineering Task Force (IETF). The alliance’s stated goal is to define what it means to be “quantum-ready” and how that status should be verified, organizing work across four groups focused on blockchain transition, post-quantum zero-knowledge systems, wallet security and interoperability.
The alliance highlighted concerns about Bitcoin’s exposure to quantum-capable attacks, citing a figure of approximately 6.04 million BTC, around 30% of the supply, as currently exposed under certain models. One model referenced by the alliance flagged March 2028 as an early potential window for an attack. Separately, a consortium backed by BlackRock, Strategy and Coinbase has committed $15 million to address the challenge.
Google’s Willow chip: improved magic-state quality but low success rate
A Science publication reported on October 16, 2026 that Google’s “Willow” chip reduced errors in preparing magic states by roughly a factor of 40 and achieved an accuracy around 99.99% for those states. However, the reported success rate for generating these states was only about 8%. The paper’s authors and subsequent reporting cautioned that this improvement does not make a quantum attack on Bitcoin 40 times cheaper; it relates to a specific resource called magic states used in fault-tolerant quantum computation.
Google’s reported model estimated an attack would require roughly 500,000 reliable magic states per second to execute an operation lasting about nine minutes. The story noted that some of Bitcoin’s oldest holdings are more exposed because their public keys have been revealed through past mining activity. An example cited: on October 7, 100.02 BTC that had not moved since July 2010 were transferred, with a reported value of about $8.5 million.
Ripple’s move into leveraged ETF financing via Hidden Road acquisition
A Wall Street Journal report dated October 7, 2026 said Ripple Prime is providing financing for leveraged equity ETFs through total return swaps, a business line that followed its $1.25 billion acquisition of Hidden Road in October 2025. The report named the Tradr 2X Long SNDK Daily ETF as paying Ripple the overnight bank funding rate plus four percentage points, about 8% annually based on rates as of October 8.
The coverage framed this as Ripple entering a U.S. market of 593 leveraged ETFs worth more than $256 billion, a segment historically dominated by banks. Ripple has not disclosed revenues from this activity or the degree to which XRP or the XRP Ledger are used in the transaction flows described.
Takeaway: security and institutional rails remain focal points
Across these developments, themes of security and institutionalization recur: exchanges balancing customer access and asset safety, a coordinated effort to set technical standards for a post-quantum world, technical progress from a major lab with caveats about practical impact, and a crypto firm extending into traditional finance products. Each story underscores different risk and governance pressures facing the ecosystem as institutions and technologists respond to evolving threats and opportunities.