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# zkSync Security Audits

## 08.29.2022

By: [ABDK Consulting](https://www.abdk.consulting/). Release Tag:
[Contracts-9](https://github.com/matter-labs/zksync/releases/tag/contracts-9)

- [Report](/ABDK_ZkSync_V9.pdf)

## 03.29.2022

By: [ABDK Consulting](https://www.abdk.consulting/). Release Tag:
[Contracts-8](https://github.com/matter-labs/zksync/releases/tag/contracts-8)

- [Report v1](/ABDK_ZkSync_V8.pdf)

## 06.29.2021

By: [ABDK Consulting](https://www.abdk.consulting/). Release Tag:
[Contracts-5.1](https://github.com/matter-labs/zksync/releases/tag/contracts-5.1)

- [Report v1](/ABDK-ZkSync-Audit-v5.pdf)

## 03.02.2021

By: [ABDK Consulting](https://www.abdk.consulting/). Release Tag:
[Contracts-4.3](https://github.com/matter-labs/zksync/releases/tag/contracts-4.3)

- [Report v2, Part 1](/ABDK-ZKSync-Audit-v2-part1.pdf).
- [Report v2, Part 2](/ABDK-ZKSync-Audit-v2-part2.pdf).

## 16.06.2020

By: [ABDK Consulting](https://www.abdk.consulting/). Release Tag:
[Contracts-1](https://github.com/matter-labs/zksync/releases/tag/contracts-1)

- [Report v1](/zksync-1.0-audit.pdf).
