About us
A small team of people who are passionate about security.
Paweł Kuryłowicz
Managing Partner & Smart Contract Security Auditor
Co-author of SCSVS and White Hat. Professionally dealing with security since 2017 and since 2019 contributing to the crypto space. Big DeFi fan and smart contract security researcher.act Security Auditor
Damian Rusinek
Managing Partner & Smart Contract Security Auditor
PhD, Speaker, Co-Author of SCSVS and White Hat. Professionally dealing with security since 2009, contributing to the crypto space since 2017. Smart contract security research lead.
Our team
Paweł Kuryłowicz
Managing Partner
Smart Contract Security Auditor
Damian Rusinek
Managing Partner
Smart Contract Security Auditor
Our values
Self-development
Blockchain will have a significant impact on what the future will look like, we do our best to make it as good as possible.
- We update our knowledge
- We share knowledge with the team
- We strive to increase efficiency
- We find new and better solutions for our customers
Responsibility
Blockchain will have a significant impact on what the future will look like, we do our best to make it as good as possible.
- We keep our word
- We are honest
- We test the best we can
- We take care of each other and our clients
Cooperation
Blockchain will have a significant impact on what the future will look like, we do our best to make it as good as possible.
- We help when someone needs help
- We educate clients and take care of their projects
- We can count on every person on the team
- We consult to get the best effect for the client
Top-talent audit firm who provided a great report. What set them apart was the immense effort they put into threat modeling of the Flexy, and also went to great lengths to understand and discover vulnerabilities in Flexy’s backend processes. Their work helped us gain a stronger understanding of Flexy’s security.
Composable Security performed a security review service of custom blockchain implementation. Everything was done with due care. A team of security experts, leveraging their expertise, ensured a through examination of our system. Timely completion and effective communication were also key highlights of their service.
We are pleased to recommend Composable Security as a provider of professional smart contract auditing services. They performed a thorough review of our smart contracts and demonstrated a high level of expertise and professionalism. The team was extremely responsive to our questions and needs.
We are an organization dedicated to advancing science and consequently aren't a well funded startup. The fact that they have given us so much attention speaks incredibly well for their business at large. I can’t imagine the attention they must give to big organizations with much higher security needs
I would rank Composable Security on the top, among the best auditors we’ve worked with. The level of precision and communication was very high.
I liked the clear communication, helpful questions, and extra feedback we received. Composable Security delivered more than we expected.
We felt special and that was great. Security advisors who think outside the box and really try to understand the project. Everybody should work with you guys!
Videos from the events
EthereumZurich – Secrets of Uniswap V4: A Deep Dive into Hooks Security
Practical insights and tips from our in-depth research conducted with the support of a grant from the Uniswap Foundation. Journey into the heart of Uniswap V4’s architecture
FIL Dev Summit – How to be secure by design and not pay millions?
Key activities that projects can undertake at the early stages to significantly enhance their security. Gain insights on shifting to a threat-focused mindset.
EthCC – The streets of Dark Forest are paved with gold
A brief history of security research that saved millions of USD exposed to easy theft. Damian shares his methodology and gives security recommendations for dev teams to avoid such issues.
Incoming events
Devconnect ARG – 17-22.11.2025
Ready to talk security over steaks and yerba mate? Meet us in Buenos Aires!
Let us help
Get throughly tested by the creators of Smart Contract Security Verification Standard