TEAL Smart Contract Audit

Elevate your TEAL smart contract to unmatched security levels with ImmuneBytes’ carefully crafted ‘multi-stage’ auditing process.

Teal smart contract audit services

What Are TEAL Smart Contracts?

Smart contracts on Algorand are powered by TEAL and built into Layer-1. They, thus, benefit from the network's speed, security, and scalability with reduced settlement risk through execution, low transaction fees,and flexible implementations needed to power complex applications. TEAL is an assembly-like language processed by the Algorand Virtual Machine (AVM). The language is a Turing-complete language that supports looping and subroutines but limits the time the contract has to execute using a dynamic opcode cost evaluation algorithm. ImmuneBytes auditors are well aware of the novel nature of TEAL and pay special attention to the vulnerabilities specific to the language. From studying the documentation to writing unit test cases, we do it all for you. Explore new benchmarks of security audits with ImmuenBytes for your TEAL contracts.

TEAL Smart Contract Audit Stages

ImmuneBytes helps you deliver quality contracts with no loopholes to your customers. This process is a carefully performed code review. Our experts break this process into the following stages to ensure it is conducted smoothly:


1. Requirement Gathering

The first step involves analyzing the essential documents required for the audit process and analyzing them. These include documents like BRD, GitHub links, whitepapers, and all the other technical specifications. It assists the auditors in analyzing the intended function of the smart contract they are reviewing.


2. Automated Analysis and Unit Testing

The next phase involves the auditors writing custom unit test cases specific to the smart contract and performing test runs on those unit test cases, along with the test suite provided by the developers. Also, our security auditors deploy automated audit tools to catch vulnerabilities on the surface level.


3.Manual Analysis

Manual analysis is the most crucial step in the audit process. In this step, our team checks the vulnerabilities in the code by scanning the whole code line-by-line. Our auditors examine the code for logical bugs and run your code against a fuzzing test suite. The auditors recommend addressing the found vulnerabilities and code optimization.


4. Reporting

The last stage of a TEAL security audit can be classified into initial and final reporting. First, our auditors include their recommendations and the detected bugs in the initial reporting. Here, we classify them based on their severity level. After initial reporting, the developers refactor the code based on the recommendations from our auditors in the initial reporting and the final audit report is generated.

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TEAL Smart Contract Audit Structure

ImmuneBytes has a predefined structure for auditing a TEAL smart contract, and we intend to follow it unless there’s any custom requirement. The structure is simple, and it helps our clients to understand our audit methodology better!

Audit Overview

An initial overview of the smart contracts under examination to get a gist of what the system intends to do and what type of application the client wants to build.

Known Vulnerability Description

This section contains information about the known vulnerabilities of TEAL smart contracts and the vulnerabilities that will be tested during the audit process.

Critical Contract Vulnerabilities

These are the bugs that, when exploited, result in fund losses and are crucial to maintaining the integrity of the client.

High-grade Contract Vulnerabilities

TEAL smart contracts often have bugs in them, which can conflict with the business logic of the application and hinder the intended use case.

Medium Contract Vulnerabilities

Medium-level bugs are those which can damage the system but have certain limitations to them. These might tamper with the performance of the contract.

Low-grade Contract Vulnerabilities

Low-grade vulnerabilities are usually informational and must be fixed for the smart contract to perform better and faster.

Gas Optimization Suggestions

Gas plays an important role in blockchain transactions, so optimizing your contracts for gas is an essential part of the audit process.

Audit Summary

An audit summary is given to the client once the audit is over, detailing each vulnerability found along with the recommendations to fix it.

Why Is TEAL Smart Contract Audit Important?

If you're wondering why you should go for TEAL security audits, these are some benefits you get when you hand over your code to our reliable smart contract auditing company.


Optimize your code


Gain the trust of users


Secure user funds


A security certificate for investors

Why Choose Us?

Our team of auditors has the perfect expertise to discover every vulnerability in your contract and help you mitigate it. We do our best to help our clients eliminate the fear of losing access to their funds or applications. These are some of the highlights that allow us to distinguish ourselves from the crowd.

Extensive Audit Report

Our audit reports are comprehensive and document every measure taken during the audit process. We classify the vulnerabilities according to their severity levels and offer remediations and code optimisations.

Check For 100+ Vulnerabilities

We analyze a smart contract for over a hundred vulnerabilities. These include bugs that have been exploited and others that could be exploited in the future.

Smart Contract Fuzzing

We fuzz-test your smart contracts as an additional measure. Fuzzing a smart contract ensures that it will not behave unexpectedly against any given input, minimizing the risk of hacks.

Post Refactor Reaudits

Not just once, we audit your code twice! Once your developers review our audit report and make the recommended fixes, we again analyze your contract and prepare the final audit report.

Security Test Cases

Our auditors use frameworks to write unit test cases other than the developers provided. We ensure to traverse every possible branch of execution in the source code.

Quick Turnaround Time

A dedicated team of auditors is assigned to your project, who usually take 3-10 days to complete an audit, depending on the code size. We are result-oriented and understand the gravity of deadlines.

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Recent Blogs

Everything you need to know to get familiar with Web3! News, Blogs, Announcements and more.


Get the answers to all your queries related to TEAL smart contracts with these commonly asked questions!

  • When you are preparing for a product launch
  • Before an important listing
  • When you have noticed any malicious activity
  • After introducing major updates

Some of the best practices for TEAL smart contract development are staying aware of how the AVM works, updating the code with the latest rollouts of TEAL, paying attention to opcodes, avoiding using byte math and moving extensive calculations off-chain.

COne of the biggest challenges during a TEAL smart contract audit is the need for automated analysis tools. Algorand is a platform-oriented language limited to TEAL. Thus, auditors need to find resources. ImmuneBytes auditors have researched TEAL and are proficient in auditing TEAL contracts.

The cost of our audit process depends on many factors, like the code's complexity and the documentation you provide us. You can answer a few questions on our pricing page to get a rough idea of the audit cost we will perform for you.

The duration of the audit that we perform depends on many factors, including the size and complexity of the project.

The time taken to complete audit usually takes 5-15 days to process the initial audit report, depending upon the nature of the project, the technology stack used, the size of your codebase, the complexity of the code, how tightly the code is integrated, the availability of auditors, etc. However, despite these factors, we take pride in meeting deadlines given by our clients and delivering satisfactory results.