# The Zcash Daily

**URL:** <https://forum.zcashcommunity.com/t/the-zcash-daily/57219>\
**Category:** Ecosystem Updates\
**Created:** [August 27, 2026, 3:42pm UTC](https://forum.zcashcommunity.com/t/the-zcash-daily/57219 "2026-08-27T15:42:03Z")\
**Posts on this page:** 1\
**Showing post:** 36

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**Author:** ![ola\_olu](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/ola_olu/32/40750_2.png) [@ola\_olu](https://forum.zcashcommunity.com/u/ola_olu)\
**Post date:** [October 9, 2026, 6:34pm UTC](https://forum.zcashcommunity.com/t/the-zcash-daily/57219/36 "2026-10-09T18:34:41Z")

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**🛡 The Zcash Daily —** _Friday, October 9, 2026_

Zakura engineer Roman Akhtariev published a [post-quantum upgrade plan](https://cryptobriefing.com/zcash-quantum-resistant-payments-january-target/) targeting January 2027: hash-based spending signatures for transparent addresses, replacing the elliptic curve math that quantum computers could eventually crack. The uncomfortable number in the announcement: 70% of circulating ZEC — roughly 11.96 million coins — sits in transparent addresses right now. That’s 70% of all ZEC with public keys exposed on-chain, waiting for a defense that hasn’t shipped yet. The upgrade protects only the transparent pool; shielded addresses need separate quantum-resistant work. Ethereum’s Justin Drake has been pushing “[bunker mode](https://www.coindesk.com/tech/2026/10/09/zcash-developers-set-january-target-for-quantum-resistant-payments-after-bunker-mode-scare/)” — moving funds to addresses whose public keys have never been exposed. For Zcash, the answer to bunker mode is the shielded pool itself. The irony: the privacy feature is also the quantum shelter.

Zakura also shipped something quieter that matters more than it looks. [Private Information Retrieval](https://en.coin-turk.com/zakura-to-add-post-quantum-signature-opcodes-for-zcash-transparent-addresses-in-january/) is now experimental in the Vizor wallet — when you check a balance, the server can’t see which address you’re querying. Ordinary balance lookups let the server correlate addresses that appear unrelated on-chain; PIR closes that leak. Transparent activity is split into block-range shards, each with a compact filter the wallet checks locally. The wallet only makes a private server lookup when a filter flags a match. The same method can rebuild full wallet history from a mnemonic. This is infrastructure-level privacy plumbing — the kind of work that never makes headlines but changes what “using Zcash” actually means.

ZEC dropped to $1,148 intraday yesterday before bouncing to ~$1,218 — a [$10.88M liquidation cascade](https://www.tokenpost.com/news/investing/28299) in a single hour wiped overleveraged longs. Total 24h liquidations hit $13.6M, 80% of it long positions. The correction from September’s $1,697 peak is now 30%. The [October 20 mainnet decision](https://forum.zcashcommunity.com/t/nu7-timeline/57655) is 11 days out.

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