Independent Web3 security researcher

Qualifications.

Hi, I’m K42. I find exploits in smart contracts and infrastructure. My main quests are smart contract and blockchain / DLT auditing as a white hat.

I’m active in contests and bounties, auditing across Web3 and Web2 languages and runtimes. I’m available for private audits and can start within 24 hours.

02 / WEB2

Web2 qualifications

Six development credentials.

03 / PUBLIC PROFILES

Profiles

04 / AUDIT COVERAGE

Languages & runtimes

Languages and runtimes I audit across Web3 and Web2.

Web3 45 targets
  • Solidity
  • Yul + Solidity
  • Vyper
  • Cairo
  • Move
  • Aptos Move
  • Sui Move
  • Fuel / Sway
  • TON / Tact / FunC
  • Clarity
  • Rust
  • Anchor
  • CosmWasm
  • NEAR
  • ink!
  • Soroban
  • Go
  • Cosmos SDK
  • Cadence
  • Daml
  • Java
  • C / C++
  • zkEVM / zkASM / PIL
  • Huff
  • Fe
  • Michelson
  • LIGO
  • SmartPy
  • Plutus
  • Aiken
  • TEAL
  • PyTeal
  • Scilla
  • Motoko
  • Leo
  • Bitcoin Script
  • Miniscript
  • Lean 4
  • Circom
  • Noir
  • Halo2
  • RISC Zero
  • SP1
  • Python
  • JavaScript / TypeScript
Web2 Backends & frontend

Backend languages plus HTML / CSS.

  • Python
  • JavaScript / TypeScript
  • Go
  • Java
  • Kotlin
  • Swift
  • Ruby
  • HTML / CSS