Particle CS Launch app (opens in a new tab)
Company

Building security for the way blockchain is actually used.

Blockchain participation is moving beyond a single signer. Our focus is the layer of security needed when decisions and execution are shared across people, applications and automated systems.

How we work

What we believe, and how we build.

“We’re not replacing private-key security. We’re adding a layer: what a key — or the people and software behind it — is allowed to do.”

Open and inspectable

Our core enforcement layer is open source. A closed control layer asks for trust; an open one lets you examine the enforcement and reuse it.

Show the failed case

A good security demonstration includes the request that’s denied — and the on-chain result that proves it.

Usable, not just secure

Controls only help if teams can configure and understand them. We explain with real operations and interfaces, not jargon.

Precise over reassuring

We state what a control does and where it stops. No “impossible to hack”, no blanket guarantees.

Collaborate

Ways to collaborate with Particle CS.

Whether you run operations, build with us, need expert help or want to partner, it starts from a real workflow — not a generic demo.

TeamsStart with one real operationMap the roles, approvers, waiting periods and approved destinations. Test expected and unexpected cases, then review the evidence.Talk to us →
DevelopersStart with one important functionIdentify the security boundary, integrate the relevant controls, and test the lifecycle and failure conditions.Quickstart → (opens in a new tab)
ServicesHands-on help beside the productPolicy design, integration review, governance transition, agent permissions — scoped with you; no public pricing.Ask about a service →
PartnersBuild something togetherAn embedded control layer, an integration or a joint reference architecture.Partner with us →
At a glance

Facts you can check.

Particle Crypto Security LTD. We list only what you can verify.

Registered nameParticle Crypto Security LTDLegal entity
Independent auditNethermind (NM_0828)Scope: core protocol contractsScope →
Open sourceBloxchain ProtocolMPL-2.0 · examples licensed separatelyGitHub → (opens in a new tab)
ProgrammeIsrael Innovation AuthorityProgramme participantVerify → (opens in a new tab)

Partnerships, research or a real workflow?

We’d like to hear what you’re working on.