Two stablecoin stories from 7–8 October 2026 point in the same direction: dollar tokens moving into everyday consumer tools and into the frameworks institutions already use to judge credit.
First, Samsung says Samsung Wallet and Samsung Pay will support USDC transfers on Solana for cross-border remittances, starting in the last week of October for users on US Galaxy devices, with Coinbase custodying the USDC [1]. Second, Moody’s has assigned Sky Protocol, which operates the USDS stablecoin, a B3 issuer rating with a stable outlook, described as the agency’s first rating for a stablecoin protocol [2].
Both are confirmed by the companies involved. Neither is a launch at scale yet, and a B3 rating is a speculative-grade grade, not a stamp of safety. No investment advice follows.
What has Samsung announced?
Confirmed (company statement, as reported). In a statement released on Thursday 8 October, Samsung said Samsung Wallet and Samsung Pay will support USDC transfers on Solana for cross-border remittances, starting in the last week of October [1]. Samsung put the reach at 82 million US Galaxy devices [1]. That is a device count from Samsung, not a user or adoption figure.
The design choices, as The Block reports them [1]:
- Inside the wallet, not a separate app. The feature is built into Samsung Wallet, with fiat on- and off-ramps.
- No key management for users. Woncheol Chai, head of Samsung Electronics’ digital wallet team, said eligible users “can get started without installing another app or managing private keys themselves” [1].
- Where money can go. Users can send USDC to compatible external wallets. Samsung says the wallet will also support transfers to eligible bank accounts in more than 60 countries, delivered in the recipient’s local currency [1].
- Fees. Samsung says it will not charge a fee on USDC transfers, though recipient wallets or exchanges may; fees on the bank-account path may vary by destination, and speed depends on network conditions [1].
- Infrastructure. The Block’s report says Solana’s and Sui’s infrastructure operate “behind the scenes”, and that the framework works with Bastion, described as a licensed US stablecoin custodian [1].
Custody. Coinbase says it will custody the USDC held in Samsung Wallet through Coinbase Prime, in a blog post by Alec Lovett, its head of infrastructure products, cited by The Block [1]. The sources checked do not spell out how responsibilities divide between Coinbase and Bastion; TSN is not inferring one.
Expansion. Samsung says it plans to bring the service to more markets, subject to local regulatory requirements [1].
Why does a phone wallet matter for stablecoins?
The point is distribution. Most stablecoin activity today happens inside crypto apps and exchanges. Samsung is putting a dollar token into the default wallet on a large installed base of phones, with on- and off-ramps and a custodian handling keys.
That changes who might use a stablecoin, not what a stablecoin is. USDC is still a dollar token issued by Circle; Samsung is a front end. The practical questions for users are the ordinary ones for any remittance service: eligibility, limits, fees at the receiving end, and what happens if a transfer goes to the wrong address. The sources checked do not answer most of those yet.
What questions are still open for Samsung users?
The announcement answers the “what” and the “when”. Several practical points are not covered in the sources checked [1]:
- Eligibility. Which users, devices and states qualify, and what identity checks apply.
- Limits. Any daily or per-transfer caps.
- Costs at the other end. Samsung charges no fee, but recipient wallets, exchanges and the bank-account route may.
- Mistakes. What happens if USDC is sent to the wrong external address, which on a public blockchain is usually irreversible.
- Roles. Which firm a user deals with if something goes wrong: Samsung, Coinbase or Bastion.
Until Samsung publishes terms, treat the launch as announced, not tested.
What did Moody’s say about Sky Protocol?
Confirmed (company release and Moody’s action, as reported). Moody’s Ratings assigned Sky Protocol a B3 issuer rating with a stable outlook, which The Block describes as the first rating the agency has issued to a stablecoin protocol [2]. Sky operates the USDS stablecoin; capital allocators access USDS liquidity and deploy it across diversified strategies [2].
Sky says it is now the only stablecoin protocol formally rated by both Moody’s and S&P [2]. That is Sky’s claim. S&P’s earlier rating, in August 2025, was B-, and The Block reports S&P said it reflected depositor concentration, centralised governance and weak capital buffers [2].
Sky’s own response was candid about the weak points. “We recognize the considerations Moody’s identified and remain focused on supporting efforts to raise the level of Sky Reserves,” said Greg Feibus, global head of capital markets at the Sky Frontier Foundation [2].
What does a B3 rating actually mean?
In plain terms, Moody’s ratings run from Aaa down through Baa (the lowest investment-grade band) and into speculative grades. B3 is the lowest notch of Moody’s B band, well below investment grade. S&P’s B- sits at a comparable point on its own scale.
So the headline “first stablecoin protocol rating” and the grade itself say different things:
- Being rated lets institutions compare Sky using a framework they already use. Feibus said independent ratings “allow institutional investors to assess Sky through frameworks they already use across global markets” [2].
- The grade says the agency sees material credit risk, with weak capital buffers among the concerns S&P named and Sky’s own focus on raising reserves [2].
The Block also reports that, last month, Galaxy added $100 million of sUSDS (the savings version of USDS) to its corporate treasury, approved sUSDS as collateral across its institutional trading business and bought an undisclosed amount of SKY tokens [2]. Feibus attributed increased institutional interest to the earlier S&P rating [2].
How do these two stories fit together?
They describe two halves of the same shift:
- Samsung is about reach: putting a regulated, custodied dollar token where ordinary users already pay [1].
- Moody’s is about assessment: giving institutions a familiar credit label for a protocol-issued stablecoin, even when the label is speculative-grade [2].
They also highlight a difference in design. USDC, in Samsung’s setup, comes with a named custodian and no user key management [1]. USDS is issued by a protocol whose reserves and capital buffers are exactly what the rating agencies have been scrutinising [2]. “Stablecoin” covers both, but the risk questions differ.
What this does not prove
- That 82 million people will use USDC. 82 million is Samsung’s count of US Galaxy devices; eligibility and uptake are unknown [1].
- That the feature is live. Samsung says it starts in the last week of October [1].
- Exactly how custody is split between Coinbase and Bastion. Both are named in coverage; the division of roles is not spelled out in the sources checked [1].
- That a B3 rating means USDS is safe. B3 is speculative grade; Sky itself acknowledges the need to raise reserves [2].
- That every stablecoin now has, or needs, a credit rating. This is one protocol’s rating from one agency, plus an older S&P rating [2].
- Any price or yield outlook for SKY, USDS, sUSDS, USDC or SOL. TSN is not offering investment advice.
The Bottom Line
Samsung plans to put USDC transfers on Solana inside the default wallet on US Galaxy phones from late October, with Coinbase custody and no private keys for users to manage [1]. Moody’s has rated Sky Protocol, issuer of USDS, at B3 with a stable outlook, its first stablecoin-protocol rating [2]. Both are steps towards the mainstream. One widens access; the other measures risk, and the measure is a speculative grade.
Sources
- Timmy Shen, “Samsung to launch USDC transfers on Solana for US Galaxy users,” The Block, 7 October 2026 (22:50 EDT; 03:50 BST 8 October), citing Samsung’s statement and a Coinbase blog post. https://www.theblock.co/news/business/2026-10-07-samsung-to-launch-usdc-transfers-on-solana-for-us-galaxy-users-418004
- Jason Shubnell, “Moody’s gives Sky Protocol B3 rating as institutional interest in USDS grows,” The Block, 7 October 2026. https://www.theblock.co/news/business/2026-10-07-moodys-sky-protocol-b3-rating-first-stablecoin-protocol-417931
