OpSec

Web3 OpSec

High-signal operational security frameworks built on complementary sources and self-sovereign principles.

LOCAL / SIGNAL / CONTROL
Threat Surface Model
Layered defense for high-stakes operators
ETH-first · Ethereum operators
01Identity & Access
YubiKey / FIDO2 · passkeys · least privilege · session hygiene
02Wallet & Key Custody
Hardware wallets · Safe multisig · Fluidkey receive patterns
03Network & Privacy
VPN/Tor · DNS · RPC choice · leak checks
04Endpoint Hardening
Linux · macOS · Windows baselines
05Ops & Recovery
Backups · drills · incident runbooks
Capability Path
From personal baseline to team-grade Web3 OpSec
Stage A
Baseline
  • ·Clean OS
  • ·Disk encryption
  • ·YubiKey for login / SSH
Stage B
Treasury keys
  • ·Safe m-of-n
  • ·HW wallets / signer
  • ·Ceremony + backups
Stage C
DeFi ops
  • ·Approvals scoped
  • ·Simulate → sign
  • ·Gov / bridge runbooks
Stage D
Team SOTA
  • ·Role separation
  • ·Drills & recovery
  • ·High-decentralization friction

Focus: high-decentralization Ethereum / DeFi treasuries. YubiKeys gate humans; Safe + hardware wallets hold capital; DeFi ops need runbooks. Learn from these blueprints, then ask us for training to put them into practice.

How to work with us

Blueprint first. Workshop second. Guides underneath.

The spine is DeFi-native treasury and key management for high-decentralization teams. Workshops and OS guides hang off that blueprint - not the other way around.

OS Hardening

Tactical floor

Pair a hardened host with a YubiKey before you touch value. These guides sit under the SOTA stack.

Top-tier solutions

When you need institutional grade or HNW security

Our SOTA Operator Stack is for sovereign and decentralized treasury teams. For banking-grade custody or high-net-worth personal security, these are the top-tier references we point people to - no ego, just the right tool for the mandate.

Taurus

Institutional custody

Top-tier digital-asset infrastructure for institutions: custody, policy engines, HSM/MPC, and operational controls built for regulated environments and serious AUM.

  • · Banking-grade key protection and governance
  • · Multi-party approval and policy-driven workflows
  • · Right fit when DIY Safe / HW-wallet ops are not enough
taurushq.com

OpSec

HNW security

Top-tier operational and endpoint security for high-net-worth and high-risk operators: OS hardening, threat-modelled setups, and security depth beyond generic consumer advice.

  • · Linux, macOS, Windows hardening at a professional bar
  • · HNW / high-risk personal and team threat models
  • · Complementary top-tier path when you need specialist HNW security
opsek.io OS security baselines we align with on the sovereign track.