As Zama integrates confidential assets into Ethereum-based yield strategies and Zcash continues to be closely connected to market demand for shielded transactions, privacy-focused cryptocurrency activity is shifting into two different domains.

Recently, a user used Zama to deposit about $85,568 in confidential cUSDT into a Flowdesk vault, protecting information including the position and vault selection. Grayscale's ZEC ETF saw $93.56 million in weekly withdrawals while ZEC surged above $1,650 before falling near $1,300.

Zama Brings Confidential cUSDT Into Flowdesk Vaults

The Flowdesk transaction provides a specific example of how Zama is integrating confidentiality into an already-existing DeFi system. A Flowdesk vault on Ethereum was filled with about $85,568 worth of cUSDT; details on the user's allocation and position were hidden from the public.

Flowdesk's High Yield Confidential USDT vault, which runs through Morpho, is part of Zama's present confidential DeFi infrastructure. According to Zama, 16 confidential vaults from five curators and five asset classes, including USDT through cUSDT, were included during its September expansion.

Having a private version of USDT is not the only significant change. Yield strategies can now make use of confidential balances while lowering the amount of portfolio data that is visible on-chain. By making zero-amount deposits to other vaults without transferring money into them, Zama's deposit interface also includes a feature that may hide which vault a user has chosen.

Zcash Shows Both Price Strength & Investor Pullback

In September, Zcash made a major surge, with ZEC soaring above $1,650 before declining back near $1,300 in early October. A significant shift in flows into Grayscale's ZCSH spot Zcash ETF coincided with the pullback.

For the week ending October 2, the fund saw net outflows of $93.56 million. Since late August, that was its first weekly outflow. On September 30 and October 2, withdrawals were $30.25 million and $26.93 million, respectively.

Because ZCSH had drawn significant demand in September, the reversal is noteworthy. According to accessible fund flow data, its cumulative net inflows reached roughly $271 million by September 21 before the subsequent withdrawals lowered that amount.

good example of what I mean by Confidentiality.

I deposited ~$85K into a confidential vault using @zama .

people shouldn’t be able to see:
• Which vault my funds are actually in
• How much I’ve allocated
• What positions I hold

I’m still onchain. I’m still using the blockchain.
But being onchain shouldn’t mean exposing my entire financial life to the world.
Now imagine an institution managing hundreds of millions onchain.

Would they want competitors tracking every allocation, position change, and strategy in real time?

Probably not.

Keep what needs to be verifiable, verifiable.
Keep what needs to be private, confidential.

— ZAMA_APPLE🇰🇷 (@eth_apple) October 4, 2026

Zcash's Token Activity Needs a Clear Distinction

ZRC 20 has drawn attention to Zcash as well, although this development must be kept apart from the official Zcash protocol. The Zcash Foundation said that the project is private rather than an official Zcash token standard or protocol feature and that it has no prior knowledge of the ZRC 20 project or the CASH token that goes with it.

ZRC 20 is a fungible token system that uses JSON operations for deployment, minting, and transfers, according to the project's own documentation. Instead of requiring a Zcash consensus change or smart contracts, its draft architecture reconstructs token balances using encrypted memo fields and indexers.

When evaluating Zcash's privacy developments, that distinction is important. While the network's own protocol updates are ongoing through the Zcash Improvement Proposal process, ZRC 20 shows activities centered around Zcash. According to Zcash's official documentation, this proposal procedure is how protocol changes are examined before being approved by consensus.

Institutional Demand Meets Selective Confidentiality

Zcash's ETF activity and the Flowdesk cUSDT deposit suggest different indications of the same market trend. By directly applying anonymity to Ethereum-based financial positions, Zama enables users to pursue yield without disclosing the same level of portfolio detail that is often exposed through public balances.

Meanwhile, a more complex market signal is being seen by Zcash. Strong demand for ZEC in September was demonstrated by the climb above $1,650, but institutional interest has not gone in a straight line, as evidenced by the subsequent decline toward $1,300 and the $93.56 million in ETF withdrawals.

When considered collectively, the developments focus the discussion on selective confidentiality. Zama is enabling the use of confidential USDT within tested DeFi infrastructure, while Zcash continues to expand around protected operations and attracts interest from regulated investment products. The difference between such approaches becomes increasingly important as privacy technologies get closer to institutional Bitcoin markets.

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