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Zcash Enhances Security Against AI and Quantum Threats

Zcash Enhances Security Against AI and Quantum Threats

First seen 11 Oct 2026, 22:59 UTC • •
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ThreatCluster AI
ThreatCluster •October 12, 2026 at 22:32 UTC
  • •Zcash plans to implement post-quantum signature opcodes in January 2027.
  • •The upgrade will enhance security for transparent payments, which make up 70% of Zcash transactions.
  • •Private information retrieval will allow users to check balances without revealing linked addresses.

Zcash developers, through the Zakura team, are implementing post-quantum signature opcodes expected to launch in January 2027. This upgrade aims to enhance the security of transparent payments by introducing hash-based signatures as a backup to current elliptic-curve signatures. The initiative follows warnings from Ethereum researcher Justin Drake regarding vulnerabilities in ECDSA signatures due to advancements in AI and quantum computing. The upgrade will also feature address rotation and private information retrieval (PIR) to prevent servers from linking user addresses. The Vizor wallet will roll out PIR this week, allowing users to query balances without revealing linked addresses. No specific network activation date has been confirmed yet, and the focus remains solely on transparent payments, which constitute approximately 70% of Zcash transactions. This proactive approach positions Zcash as a leader in privacy coins addressing quantum resilience.

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Timeline

2026-10-08
Zakura announces quantum-safe plans
Zakura shared a plan for quantum-safe, unlinkable rotating addresses on social media, emphasizing their proactive approach to privacy.
Cryptonews
2026-10-11
Zcash price rises due to roadmap coverage
Media coverage of Zcash's post-quantum security roadmap contributed to a 3.3% increase in its price.
Coinmarketcap
2026-10-12
PIR feature rollout in Vizor wallet
The Vizor wallet is set to introduce private information retrieval, allowing users to query balances privately.
Decrypt

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Common questions

What is the timeline for the Zcash upgrade?
The post-quantum signature opcodes are expected to be implemented in January 2027.
How will the upgrade affect Zcash transactions?
The upgrade will enhance the security of transparent payments, which account for 70% of Zcash transactions.
What is private information retrieval (PIR)?
PIR allows users to check their balances without revealing which addresses they are querying, enhancing privacy.