Security testing for smart contracts and Web3 protocols before launch
QAble combines adversarial security testing, fuzz simulation and functional QA to protect your blockchain protocol before a single exploit costs you everything.
Testing coverage for:
Engineering teams that rely on QAble
Why blockchain security cannot be treated as a checkbox
A smart contract is not software that gets updated. It is a commitment deployed to an immutable ledger. The security model changes completely.
On-chain bugs cannot be patched: only exploited or abandoned
Traditional software bugs can be fixed in the next deployment. A smart contract vulnerability lives on-chain permanently. Once exploited, funds drain in seconds. The only protection is discovering and fixing the vulnerability before the contract is deployed.
Security audits and functional testing are both required
An audit that finds no vulnerabilities does not confirm the protocol works correctly. Functional testing that validates expected behaviour does not surface hidden attack vectors. Blockchain security requires both: adversarial testing to find exploits and functional QA to confirm the protocol behaves as designed.
Cross-chain complexity multiplies every attack surface
Each bridge, relay and cross-chain message passing point is an independent attack surface. A protocol that has been audited on one chain may contain entirely different risk vectors when deployed across multiple chains or when bridge logic is added.
Test blockchain protocols when:
Why blockchain protocols fail after launch
On-chain bugs are irreversible. Unlike traditional software, a deployed smart contract vulnerability cannot be patched: only exploited.
Common outcomes without blockchain security testing
smart contract vulnerabilities exploited on mainnet before they are patched
Contractscross-chain bridge attacks draining liquidity across multiple chains simultaneously
Bridgesgovernance exploits passing malicious proposals through flash-loan manipulation
Governancewallet and dApp integration failures creating signature replay and approval risks
Walletsperformance failures under network congestion causing silent transaction loss
PerformanceThe QAble Solution
Blockchain security testing is protocol-survival, not a compliance checkbox. QAble combines adversarial exploit simulation, structured audit methodology and deep protocol expertise to protect your launch and your users.
Protocol fund exposure
Value at risk from unaudited smart contract logic before launch.
Bridge attack surface
Cross-chain bridges are the highest-value target in Web3 security.
DeFi logic exploit rate
Proportion of DeFi hacks originating from unaudited protocol logic.
Post-deployment defect cost
On-chain bugs cannot be patched: only exploited or abandoned.
Blockchain testing coverage areas
Full-spectrum coverage from smart contract logic to cross-chain bridges, wallet integrations and protocol performance under adversarial conditions.
Smart contract testing
Comprehensive validation of contract logic: reentrancy patterns, access control, integer overflows.
Security and vulnerability testing
Adversarial testing combining fuzz analysis, static code review and exploit simulation to surface hidden attack vectors before your protocol reaches mainnet.
DeFi protocol testing
Complete testing of AMM logic, yield strategies, governance flows and liquidation mechanisms under normal and adversarial market conditions.
Cross-chain and bridge testing
Targeted auditing of bridge contracts, message relay logic and cross-chain state consistency, the highest-risk surface in multi-chain deployments.
Wallet and transaction testing
Full-stack integration testing for wallets, dApp flows, signature approvals and transaction handling across MetaMask, WalletConnect and embedded wallet providers.
Performance and scalability testing
Stress testing under network congestion, high-volume scenarios and Layer 2 rollup-specific conditions to validate your protocol holds under production load.
Blockchain testing methodology
A structured security testing process from architecture review through exploit simulation to a launch-ready audit report.
Protocol and architecture review
Mapping your contract architecture, tokenomics, and on-chain/off-chain integration points to identify attack surfaces and define test scope.
Static analysis and code review
Automated static analysis combined with manual code review to surface reentrancy patterns, access control gaps, and logical vulnerabilities early.
Functional and integration testing
Validating every contract function, cross-contract interaction, oracle dependency, and wallet integration against expected and adversarial inputs.
Security and exploit simulation
Fuzz testing, flash loan simulations, MEV scenario modelling, and bridge exploit testing validate your protocol under realistic attack conditions.
Audit report and remediation support
Prioritised audit report with severity ratings, proof-of-concept exploit scripts, and hands-on remediation support to reach launch-ready state.
What you receive
Every engagement closes with structured audit evidence, remediation guidance and a launch readiness assessment your team can act on immediately.
Smart contract audit report
Security test evidence pack
Integration and wallet QA report
Launch readiness certification
Common blockchain vulnerabilities QAble surfaces
These attack vectors and vulnerability patterns are the most frequent causes of protocol compromise, fund loss and user harm in Web3.
Reentrancy and fund drain exploits
Unguarded external calls allow attackers to recursively drain contract balances before state updates commit, resulting in total protocol fund loss.
Cross-chain bridge compromises
Validation gaps in bridge contracts allow attackers to mint unbacked tokens or double-spend assets across chains, causing protocol-wide insolvency.
Governance takeover attacks
Flash-loan-funded governance exploits allow attackers to pass malicious proposals, redirect treasury funds or disable security mechanisms in a single transaction.
Oracle price manipulation
Thin liquidity and single-source price feeds enable oracle manipulation attacks that trigger mass liquidations or allow unbounded borrowing at artificial prices.
Signature replay attacks
Missing nonce or chain-ID validation allows valid signatures to be replayed on other networks or reused to authorise unintended actions.
Gas griefing and DoS vulnerabilities
Unbounded loops and gas-sensitive external calls enable attackers to grief protocol operations, blocking legitimate users from interacting.
Ways to work with QAble
Flexible blockchain security engagements for pre-launch audits, full protocol testing and continuous security monitoring.
2 to 4 weeks
Smart contract audit
A focused, time-boxed security audit of your smart contracts before mainnet deployment: static analysis, manual review and fuzz testing.
Deliverables
Best for
4 to 16 weeks
Full blockchain testing project
Complete security and functional testing covering your entire protocol: smart contracts, bridges, wallets, integrations and adversarial performance.
Deliverables
Best for
Ongoing
Ongoing blockchain QA
Continuous security monitoring and regression testing for live protocols, catching upgrade vulnerabilities and governance risks before mainnet.
Deliverables
Best for
Why choose QAble
QAble brings blockchain-native security engineering: adversarial testing methodology, deep protocol expertise and audit-grade evidence your team can act on.
QAble blockchain testing expertise
Questions buyers actually ask.
Common questions about QAble's blockchain testing approach and deliverables.
What blockchains and smart contract languages do you test?
We cover EVM-compatible chains (Ethereum, Polygon, Arbitrum, Optimism, Base, Avalanche, BNB Chain) and Solana. For smart contracts, we test Solidity and Vyper across EVM and Rust-based programs on Solana. We also test Layer 2 rollup-specific behaviour and cross-chain bridge contracts.
How is your blockchain testing different from a traditional code audit?
Traditional audits focus on static code review. Our testing combines static analysis with dynamic testing, including fuzz testing with real transaction data, flash loan attack simulations, MEV scenario modelling, oracle manipulation testing, and wallet and dApp integration QA. We validate both security properties and functional correctness under adversarial conditions.
Do you provide remediation support after the audit report?
Yes. Every engagement includes a post-report remediation consultation where our engineers walk through findings, clarify exploitability and review developer fixes. For Full Project and Ongoing QA engagements, we also perform post-fix verification testing to confirm vulnerabilities are resolved before deployment.
Can you test contracts that are already deployed on mainnet?
Yes. We test both pre-deployment contracts (in test environments or on testnets) and live mainnet contracts. For live protocols, we use read-only analysis, fork-based testing and mainnet simulation environments to assess risk without disrupting production. We also support upgrade and new module audits for existing live protocols.
Launch with security, not guesswork
QAble helps blockchain teams discover critical vulnerabilities, validate protocol security under adversarial conditions and launch with confidence.
Blockchain security testing that protects your protocol and your users
QAble's blockchain-native security engineers find the vulnerabilities attackers look for, so your launch is protected and your reputation stays intact.
Talk to QA Advisor
Direct access to QAble's blockchain testing specialists.
Response within 24 hours