Secure Your Blockchain. Audit with Experts.
Get proven security with audits, penetration testing, bug bounties, and more.
We identify risks and recommend fixes.
TRUSTED BY BLOCKCHAIN INNOVATORS WORLDWIDE
8+
years of expertise
600+
secured clients across Web2 & Web3
200,000+
threats prevented before exploitation
5,000+
assets protected (smart contracts, networks, apps,...)
24/7
monitoring and response
Security Gaps Can Cost You Everything – Are You Covered?
Missed Vulnerabilities
can lead to exploits and financial loss
High Security Expenses
may provide limited value
Slow Audits
disrupt development and delay launch
Unclear Reports
make remediation difficult and slow
Did you know
$2.36 Billion
total loss across 760 on-chain security incidents in 2024
$3.11 Million
lost per hack in 2024, a 23.04% increase from the previous year
51.4% vs 48.6%
DeFi leading, CeFi following in total losses
47%
of the top 50 cyberattacks in 2024 due to smart contract vulnerabilities
CyStack Delivers Efficient and Reliable Protection!
Accurate, Expert-Driven Findings
Our team of security experts uncover vulnerabilities through thorough, in-depth analysis
Fast, Flexible Process
Our audits adapt to your project’s code size, ensuring faster onboarding and timely results without compromising quality
Cost-Optimized Security
We deliver maximum value and optimal protection for your investment
Clear, Actionable Insights
We deliver clear, structured remediation steps to help you fix issues efficiently
Smart Contract Audit
Ensure your smart contract meets industry standards and best practices, minimizing compliance risks and enhancing trust with investors and users. Our audit includes:
- Detailed code review for vulnerabilities and risks
- Advanced attack vector analysis
- Comprehensive testing (static, dynamic, fuzz, stress, mutation)
- Gas optimization
- Actionable remediation steps
Blockchain Penetration Testing
Simulate real-world attacks to uncover vulnerabilities in your critical assets, strengthening your project's security. Our testing includes:
- Mobile apps, APIs, websites, and custom attack vectors
- Focus on key assets like private keys, bank data, and user authentication
- Adherence to OWASP standards
- High-accuracy reports with less than 1% false positives
dApp Audit
Audit your cross-chain bridges and dApps to identify vulnerabilities, securing operations and managing data effectively. Our audits focus on:
- Cross-chain bridges and dApps handling sensitive data, blockchain events, or message signing
- Conducted before releases, after upgrades, or major changes
Blockchain Protocol Audit
Analyze your blockchain protocol for vulnerabilities, ensuring integrity, scalability, and resilience. Our audits cover:
- Code, cryptographic methods, and consensus mechanisms
- Network security, application layers, and overall architecture
- Clear, actionable recommendations for improvement
Bug Bounty
Run Bug Bounty programs on WhiteHub to connect your project with 4,000+ ethical hackers for targeted testing. Our process includes:
- Filtering duplicates and out-of-scope issues
- Delivering only critical findings for faster resolution
- Handling all policy and payment transactions
Managed Services
Protect your project with continuous, proactive security. Our services include:
- Collaboration with your development team to detect and remediate vulnerabilities throughout the Software Development Life Cycle (SDLC)
- Real-time monitoring, detection, and incident response through our Security Operations Center (SOC)
Deliverables
How Our Security Process Works
step 1
You request our service
Step 2
We share a quote
Step 3
We conduct security assessment
Step 4
We provide report & remediation steps
Step 5
We perform follow-up review
Step 6
We provide certification and ongoing support
Frequently Asked Questions
Why CyStack?
We handle all aspects of Web3 security, from smart contracts to dApps and cross-chain solutions. Our approach is straightforward: we use trusted tools and thorough manual review to identify vulnerabilities and provide clear, actionable guidance.
We understand that time is crucial in blockchain projects. That’s why we provide fast, efficient protection to ensure your project is ready for launch, without unnecessary delays, so you can move forward with confidence.
Certifications and Awards
Our Expertise Across Major Platforms and Languages
We’ve audited a wide range of Web3 projects across various blockchain platforms and in every major programming language. With over 8 years of experience and a proven track record, we bring a deep level of expertise to every audit, ensuring your project is secure and compliant. When it comes to blockchain security, we provide nothing less than the best.
Languages
| Solidity | Rust | Move | Go | C# |
| C++ | Java | Python | Cairo | Scrypto |
| Swift |
Platforms
| Ethereum | BSC | Polygon | Optimism | Avalanche |
| Arbitrum | zkSync | Fantom | Linea | Aptos |
| Sui | Solana | Near | MultiversX | Polkadot |
| Cosmos | Base | MetaChain | Whitechain | StarkNet |
| Radix | Algorand | Cardano | Bitcoin | EOS |
| Stellar | TON | Tron | VeChain | Hedera |
| Tezos | Bitlayer |
What Our Clients Say
Using CyStack’s managed cybersecurity services has been a game-changer for ONUS. Their 24/7 monitoring, tailored solutions, and cost-efficient expertise allow us to focus on scaling our core business without the burden of building an in-house security team.
Chien Tran
Founder & CEO
CyStack's team is highly professional, skilled, and truly understands our needs. Their customer support is responsive and reliable, making our experience seamless. We've had great success working with them and highly recommend CyStack to anyone looking to enhance their security.
Dmitriy Gerasimov
FOUNDER/CEO CELLFRAME
This has been a very promising first step in what I hope will be a long and productive partnership. We have other projects on the horizon, and I look forward to exploring those with CyStack when the timing is right.
Cong Hoang
CTO
Using CyStack’s managed cybersecurity services has been a game-changer for ONUS. Their 24/7 monitoring, tailored solutions, and cost-efficient expertise allow us to focus on scaling our core business without the burden of building an in-house security team.
Chien Tran
Founder & CEO
CyStack's team is highly professional, skilled, and truly understands our needs. Their customer support is responsive and reliable, making our experience seamless. We've had great success working with them and highly recommend CyStack to anyone looking to enhance their security.
Dmitriy Gerasimov
FOUNDER/CEO CELLFRAME
This has been a very promising first step in what I hope will be a long and productive partnership. We have other projects on the horizon, and I look forward to exploring those with CyStack when the timing is right.
Cong Hoang
CTO
Using CyStack’s managed cybersecurity services has been a game-changer for ONUS. Their 24/7 monitoring, tailored solutions, and cost-efficient expertise allow us to focus on scaling our core business without the burden of building an in-house security team.
Chien Tran
Founder & CEO
CyStack's team is highly professional, skilled, and truly understands our needs. Their customer support is responsive and reliable, making our experience seamless. We've had great success working with them and highly recommend CyStack to anyone looking to enhance their security.
Dmitriy Gerasimov
FOUNDER/CEO CELLFRAME
This has been a very promising first step in what I hope will be a long and productive partnership. We have other projects on the horizon, and I look forward to exploring those with CyStack when the timing is right.
Cong Hoang
CTO
Using CyStack’s managed cybersecurity services has been a game-changer for ONUS. Their 24/7 monitoring, tailored solutions, and cost-efficient expertise allow us to focus on scaling our core business without the burden of building an in-house security team.
Chien Tran
Founder & CEO
CyStack's team is highly professional, skilled, and truly understands our needs. Their customer support is responsive and reliable, making our experience seamless. We've had great success working with them and highly recommend CyStack to anyone looking to enhance their security.
Dmitriy Gerasimov
FOUNDER/CEO CELLFRAME
This has been a very promising first step in what I hope will be a long and productive partnership. We have other projects on the horizon, and I look forward to exploring those with CyStack when the timing is right.
Cong Hoang
CTO
Using CyStack’s managed cybersecurity services has been a game-changer for ONUS. Their 24/7 monitoring, tailored solutions, and cost-efficient expertise allow us to focus on scaling our core business without the burden of building an in-house security team.
Chien Tran
Founder & CEO
