> For the complete documentation index, see [llms.txt](https://docs.zk.link/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zk.link/appendix/audits.md).

# Audits

zkLink attaches top priority to security. In virtue of zero knowledge technology, the system and product design are firm against economic attack and malicious behavior. On top of it, the team is using every possible resource to guarantee the safety of transactions and tokens.

## Audit Report

<table><thead><tr><th width="187" align="center">Description</th><th width="150" align="center">Auditor</th><th width="253" align="center">Audit Type</th><th align="center">Time</th></tr></thead><tbody><tr><td align="center"><a href="https://static.zk.link/audit/ABDK_zkLink_Circuits_v_2_0.pdf">v.1.0 Protocol</a></td><td align="center">ABDK</td><td align="center">Circuits</td><td align="center">Feb. 2023</td></tr><tr><td align="center"><a href="https://static.zk.link/audit/ABDK_zkLink_Solidity_v_1_0.pdf">v.2.0 Protocol</a></td><td align="center">ABDK</td><td align="center">Smart Contract</td><td align="center">Feb. 2023</td></tr><tr><td align="center"><a href="https://static.zk.link/audit/ABDK_zkLink_CircuitsSmartContracts_v_4_0.pdf">v.4.0 Protocol</a></td><td align="center">ABDK</td><td align="center">Circuits</td><td align="center">Jul. 2023</td></tr><tr><td align="center"><a href="https://static.zk.link/audit/ABDK_zkLink_CircuitsSmartContracts_v_6_0.pdf">v.6.0 Protocol</a></td><td align="center">ABDK</td><td align="center">Circuits and Contracts</td><td align="center">Aug. 2023</td></tr></tbody></table>