What services does iosiro offer?

According to its public information, iosiro offers: Audit and Penetration testing.

Which blockchains does iosiro work with?

iosiro works with Ethereum and Arbitrum.

Which smart contract languages does iosiro use?

iosiro works with Solidity and Rust.

Where is iosiro based?

iosiro is headquartered in South Africa.

Is iosiro verified on smart-contract.com?

Not yet. This listing was compiled from public information and iosiro has not claimed it or gone through the vetting process of smart-contract.com.

How can I get a quote from iosiro?

Describe your project once on smart-contract.com: you receive comparable quotes from vendors that match it, in the same format. Development and audit are always entrusted to two independent companies.

Vendor

iosiro

South African security firm offering smart contract audits, penetration testing and threat modeling

Public information

About

iosiro is the trading name of Zenoic (Pty) Ltd, a cybersecurity company whose terms of service are governed by the laws of South Africa. Its team of security professionals has worked with financial institutions, telecom operators and startups, and now focuses on helping blockchain projects. The firm offers three services: smart contract auditing, penetration testing of off-chain infrastructure (infrastructure, web, mobile and decentralized application assessments) and threat modeling workshops. Its audit process follows fixed steps: audit request, scoping and fixed quote, audit with progress updates, delivery of a private report with recommended fixes, review of the client's remediations and, optionally, release of a public report including the team's comments. iosiro publishes its public audit reports on its website, with reports dated 2025 and 2026 on Ethereum DeFi protocols written in Solidity. Its blog documents vulnerability disclosures on Ethereum clients, rollups and bridges, as well as research on Arbitrum Stylus, including an open-source tool for testing Stylus contracts with Foundry. It serves startups, decentralized applications, exchanges and distributed systems.

At a glance

Trading name of Zenoic (Pty) Ltd, under South African law
Smart contract audits with fixed quotes, fix review and optional public report
Penetration testing of infrastructure, web, mobile and dApp front ends
Publishes public audit reports on its website, including 2026 reports
Released arbos-foundry for testing Arbitrum Stylus contracts with Foundry

Services: Audit
Penetration testing
Blockchains: Ethereum
Arbitrum
Languages: Solidity, Rust
Headquarters: South Africa
Website: iosiro.com(opens in a new tab)
Public audit reports: iosiro.com(opens in a new tab)

iosiro: frequently asked questions

What services does iosiro offer?: According to its public information, iosiro offers: Audit and Penetration testing.
Which blockchains does iosiro work with?: iosiro works with Ethereum and Arbitrum.
Which smart contract languages does iosiro use?: iosiro works with Solidity and Rust.
Where is iosiro based?: iosiro is headquartered in South Africa.
Is iosiro verified on smart-contract.com?: Not yet. This listing was compiled from public information and iosiro has not claimed it or gone through the vetting process of smart-contract.com.
How can I get a quote from iosiro?: Describe your project once on smart-contract.com: you receive comparable quotes from vendors that match it, in the same format. Development and audit are always entrusted to two independent companies.

Where this information comes from

This listing was compiled from the public pages below and last reviewed on September 24, 2026. The company has not claimed it yet, is not a partner of smart-contract.com and has not been vetted.

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