Offensive Security · Web3 · Infrastructure · Est. 2020
ReinventingSecurityGlobally.
Offensive security for APIs, protocols, and high-risk infrastructure. We identify and neutralize threats before they become incidents.
API Exploitation · Zero-Day Research · Protocol Audits · Infrastructure
Client Attestations
Trusted by teams that can't afford to be wrong.
“Kravos found a critical vulnerability within the first 48 hours — something our internal security review had missed for months. Their technical depth is unlike any firm we have worked with.”
Head of Engineering
Polymarket
“They didn't just hand us a list of findings. They showed us precisely how an attacker would chain vulnerabilities to drain real funds. That adversarial mindset is genuinely rare.”
CTO
dYdX
“Zero fluff. Every finding came with a reproduction path, a severity justification, and a concrete fix. Our engineers shipped the remediations the same sprint.”
Security Lead
Rain.gg
Case Studies
Real findings. Real impact.
Pentesting Polymarket
Impact
Complete crash of gamma-api.polymarket.com — Polymarket's prediction market API — causing full service disruption for all platform participants.
Vector
Frontend 200-char limit bypassed via direct API call → oversized bio payload (90,999 chars, non-string data) → stack memory overwrite in webserver process → API crash
Fix
Server-side input validation enforced on the bio field; payload size and type sanitized at the API layer; stack memory corruption path eliminated.
Our Services
Full-spectrum offense. Real-world impact.
Web3 & Smart Contract Auditing
- DeFi protocol attack surfaces
- Smart contract logic flaws
- Oracle manipulation
- EIP-712 / signature separation audits
Web2 API & Backend Security
- Business logic exploitation
- Auth & session hijack
- Rate-limit & abuse vectors
- Header validation attacks
Infrastructure & Zero-Day Research
- Cloud misconfiguration analysis
- WAF / firewall bypass testing
- Novel Web3-specific attack chains
- Hybrid Web2/Web3 exploitation
Engagement Process
How we engage.
Scope
Define the attack surface, constraints, and objectives alongside your team.
Attack
Full adversarial testing across every agreed vector — systematic, thorough.
Report
Every finding documented with reproduction steps, severity, and a fix.
Retest
We confirm each fix held before sign-off. No finding closes without proof.
Scope
Define the attack surface, constraints, and objectives alongside your team.
Attack
Full adversarial testing across every agreed vector — systematic, thorough.
Report
Every finding documented with reproduction steps, severity, and a fix.
Retest
We confirm each fix held before sign-off. No finding closes without proof.
Who We Are
Adversarial by instinct. Methodical by design.
Kravos is an offensive security team built to find what attackers would. We operate with an adversarial mindset — simulating how systems break under real pressure across DeFi protocols, smart contracts, and the infrastructure your protocol depends on.
- 01Protocol-agnostic attack surface mapping
- 02Full-chain exploit research, not scanner output
- 03Every finding reproduction-tested before reporting
Why Kravos
No checkbox audits. No filler findings.
Advanced R&D
We track attack vectors before they appear in the wild.
Actionable Reports
Every finding ships with reproduction steps and a fix ready to ship.
Zero-Day Expertise
Novel vulnerabilities across DeFi and infrastructure that scanners miss.
Free Retest
We verify your fixes at no extra cost. A patch that doesn't hold isn't a patch.
Get in Touch
Start an engagement.Disclose a finding.
Private handling across all engagements. We scope within 24 hours and treat every disclosure with full confidentiality.