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Audit and security review

Smart contract audit and security review for Web3 code

We review Solidity, Rust and TON contracts by hand and with tools, test how they fail and give you a written list of findings and fixes.

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  • Manual review plus automated tools
  • Written findings and fix guidance
  • Honest limits stated in every report

What does a smart contract security review involve?

A smart contract audit is a structured read of the code by someone trying to break it. The reviewer checks that the contract does what the specification says and looks for ways an attacker, a bad token or a careless admin could make it do something else.

Our review combines manual reading, automated analysis, and testing. The output is a written report with each finding ranked by severity, an explanation of how it could be exploited and a recommended fix.

What do we look for?

Common problem areas depend on the chain, but several appear again and again.

  • Reentrancy and call ordering: external calls that let an attacker re-enter before state is updated.
  • Access control: functions that anyone can call, or admin keys with more power than needed.
  • Math and rounding: overflow, precision loss and rounding that can be farmed in small steps.
  • Oracle and price risk: prices that can be moved inside a single transaction.
  • Account validation on Solana: missing owner, signer or account checks in Rust programs.
  • Upgrade and pause logic: who can change the contract, and how fast.

Which methods do we use?

We read the code line by line against the specification, run static analysis tools, and write tests for attacker scenarios, including fuzz tests that feed random inputs to find unexpected states. For critical logic we can suggest invariant tests, and where a client wants formal verification we scope it as a separate piece of work.

We also review the deployment setup: who holds admin keys, whether a multisig is used, and how a pause or upgrade would be carried out. Review is included in our own builds, as described on smart contract development, and can be bought for code written elsewhere.

  1. You send the repository, the specification or documentation and the target chain.
  2. We confirm scope and give a written quote and timeline, since both depend on code size and complexity.
  3. We review, share findings as they are confirmed and send the report.
  4. You fix the issues, and we re-check those fixes.

Pricing for review depends on lines of code and logic complexity, so it is quoted per project. See pricing and packages for how we quote, and exchange development for builds where review is part of the plan.

What are the limits of a security review?

A review reduces risk. It cannot prove a contract has no bugs, and no one can honestly promise that. A report covers the code version we reviewed, and any change afterwards can introduce new problems. Findings we miss, or risks outside the code such as key theft or a compromised front end, remain possible.

For contracts that hold significant funds, many teams add a second independent review, a bug bounty and monitoring after launch. We are not a certification body, and our report is not a certificate.

Crypto and Web3 only Security review included Fixed-scope quotes Client owns the code

How it works

  1. Tell us what you want to build

    A wallet, exchange, contract, bot or payment flow, and the chains involved.

  2. We scope and quote

    You get an architecture outline, a timeline and a written price range.

  3. We build in milestones

    Working builds are shared at each milestone, with a security review before launch.

Questions about crypto software agency in United States

Does a review mean my contract is safe?

No. It means a reviewer looked carefully for known classes of problems and reported what they found. Some bugs survive any review. Treat a report as one layer of defense alongside tests, careful key management, limits on deposits at launch and monitoring.

Can you review code that another team wrote?

Yes. Send the repository and any documentation. The clearer the specification, the more useful the review, because we can compare intended behavior with actual behavior. We will tell you early if the code is too large or too unfinished to review well.

How long does a review take?

It depends on code size, complexity and how many chains are involved. A small token contract can be quick, while a protocol with many interacting contracts takes longer. We give a timeline in the written quote and say how long our re-check of fixes will take.

Which languages do you review?

Solidity on EVM chains, Rust programs on Solana, including Anchor, and FunC or Tact on TON. Tell us the chain and framework when you ask, and we confirm that we can review it before quoting. Languages and frameworks outside that list, such as Move, are only reviewed if we agree in writing that we have the right skills.

Will the report be public?

That is your choice. Many teams publish a report to show users what was reviewed. We can write the report so that it is suitable to share, and we sign an NDA on request if you want it kept private. If we find a serious issue before launch, we tell you straight away rather than waiting for the final report.

Ready to scope your crypto build? Message us on WhatsApp or Telegram with what you want to build and the chains involved. Chat on WhatsApp Chat on Telegram

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