Arculus
CompoSecure, Inc.
Arculus is the digital-asset security solution from CompoSecure (a NASDAQ-listed maker of premium payment cards). It pairs a cold-storage card with a CC EAL6+ certified secure element and a companion app, using three-factor authentication with keys generated and stored offline in self-custody. Beyond the consumer wallet, it offers cold storage and FIDO2 authentication to exchanges, NFT marketplaces and DAOs on a white-label basis.
Data & conditions
| Service type | Stablecoin infrastructure |
|---|---|
| Pricing model | Not disclosed |
| Custody model | non-custodial |
| Customer type | Enterprise, Marketplace, Platforms |
| Fund custody | Self-custody (funds in your control) |
| Supported countries | US |
| OAM Italy registration | No |
| Segment | B2B, B2C |
| Funding / solidity | A product of CompoSecure, Inc. (NASDAQ: CMPO), founded in 2000 |
| MiCA / License status | Not disclosed |
Strengths
- CC EAL6+ certified secure element; keys stored offline in self-custody.
- Built by CompoSecure, a listed company with long experience in physical cards.
- White-label B2B offering (cold storage + FIDO2 authentication) for exchanges, marketplaces and DAOs.
- Self-custody: funds stay in your wallet — the platform cannot touch them.
Weaknesses
- Niche adoption compared with hardware-wallet leaders.
- The white-label infrastructure arm is less documented than the consumer product.
- No notable sovereignty drawback documented.
Verdict
Score 3.6/5, solid profile. In its favour: cC EAL6+ certified secure element; keys stored offline in self-custody. The trade-off to weigh: niche adoption compared with hardware-wallet leaders.
On the Sovereignty lens the score is 5.0/5 (outstanding): the strength is fund control (5.0/5).
Promp's editorial rating based on real fees and net annual cost. Promp reviews third-party products independently.
"Sovereignty" rating: score computed on privacy/anonymity (30%), fund control (20%), censorship resistance (20%), trustless/auditability (20%) and costs (10%). Same data, different weights.
FAQ
Does Arculus custody my crypto?
No. Arculus is a self-custody solution: private keys are generated and stored offline in the card's secure element and remain under the user's control.
Who is behind Arculus?
Arculus is a product of CompoSecure, a US NASDAQ-listed company known for metal payment cards, which also develops its digital-asset security technology.
Sources
- Official service page Data verified on Jul 17, 2026
- composecure.com Data verified on Jul 17, 2026
- theblock.co Data verified on Jul 17, 2026