Unclassified // For public release
Document Personnel security file
Subject RADIĆ, Miloš
Reference MR-001
Personnel security file
1. Summary
I secure high-risk environments: Web3, trading systems and regulated capital. Engineer by training, security leader by trade.
How the findings are counted
- $8B+ in transactions secured TradeCore, February 2019 to June 2020: about $400M a month through the trading systems I secured, over 17 months, roughly $6.8B. Plus $1.33B of cumulative volume in the OnRe market on Kamino in its first year (to August 2026).
- $400M+ in on-chain capital protected OnRe, where I run security: ecosystem TVL passed $400M in August 2026, with $279.84M in assets under management.
- 0 breaches. 0 client funds lost. No confirmed breach of customer data and no loss of client funds in any environment under my security ownership.
2. Operating theatres
Web3 and DeFi
- At stake
- Transactions are final. A leaked key or a bad signature cannot be rolled back.
- What I own
- Wallet and signing workflows, admin key management, infrastructure around smart contracts, recovery drills.
Trading systems
- At stake
- Around $400M a month moved through the trading systems I secured at TradeCore.
- What I own
- Platform security, access control, secure delivery pipelines, monitoring for fraud and abuse.
Regulated capital
- At stake
- Investor funds and regulatory standing ride on every control.
- What I own
- Governance, incident reporting to the regulator, audit readiness for tokenized reinsurance at OnRe.
Engineering at scale
- At stake
- Client products across industries, each with its own threat model.
- What I own
- Security programs for engineering organisations and their clients as Head of Security at Symphony.
3. Career record
01
Software Engineer
Learned how systems break by building them.
02
DevSecOps Engineer
Moved security into the pipeline: CI/CD, secrets, supply chain.
03
Trading platform security, TradeCore
Feb 2019 to Jun 2020
Around $400M a month through the trading platforms I secured.
04
Solutions Architect
Designed cloud and identity architectures with security as a property, not an add-on.
05
Head of Security, Symphony
Built and ran the security program across engineering teams and client portfolios.
06
vCISO, OnRe
Fractional CISO for OnRe before taking the role full time.
07
Chief Information Security Officer, OnReActive
Security and governance for on-chain reinsurance under regulatory oversight.
08
Founder, ChainFenceActive
Crafting security tools for blockchain.
4. ChainFence
Founder
Crafting security tools for blockchain.
ChainFence is where I build security tooling for teams that move value on-chain: tools shaped by running security for on-chain capital every day, not by a slide deck.
Also through ChainFence
Next to the tools, ChainFence offers hands-on security work. You work directly with me, and we agree scope and deliverables before work begins.
Fractional CISO
A clear owner for security without a full-time hire: roadmap, risk register, customer assurance.
Web3 security assessment
How admin access, cloud, deployments and signing workflows could expose you, and what to fix first.
Compliance and readiness
Preparing for SOC 2, ISO 27001 and customer security reviews with controls your team can keep running.
Continuity and recovery
Recovery plans rehearsed in realistic exercises, with measured timings and gaps to close.
5. Mentoring
I mentor people at two points in a security career. Sessions are practical: what to learn next, what to build, and how to make the next step.
Starting out in security
Engineers and graduates who want a path into information security that builds real skill.
Moving into leadership
Practitioners stepping up to head of security or CISO: programs, budgets, boards and teams.
6. Contact
- Consulting and engagements
- milos.radic@chainfence.io
- ChainFence
- chainfence.io
- Direct message
- Found a vulnerability?
- security.txt
Unclassified // For public release
