THE TRANSACTION PROOF
TRANSACTION APPROVAL
Security that fits seamlessly into any digital experience
White-labeled experience
Your brand. Your colors. Your experience.
Powered by SLC Guardian APIs
Alex
Provision with confidence
Activate and assign eSIM assets across enterprises.
Manage lifecycle
Track identities and devices through every stage.
Verify and audit
Monitor activity and review cryptographic audit trails.
ENTERPRISE INTEGRATION
Enterprise-ready APIs, SDKs, and webhooks enable SLC Guardian to integrate into your existing applications and workflows with ease.
APIs
RESTful APIs for core operations.
SDKs
iOS and Android SDKs for mobile apps.
Docs & Support
Developer docs, guides, and sandbox access.
USE CASES
SLC Guardian secures the moments that matter most.
High-Value Payments
Verify every payment before funds move.
Workforce Identity
Secure employee access and privileged actions.
Privileged Access
Cryptographically authorize administrative actions.
Document & Contract Approval
Prove who approved every critical decision.
AI Agent Assurance
Require cryptographic proof before AI agents execute sensitive actions.
Citizen & Government Services
Protect digital services with hardware-rooted trust.
WHY GUARDIAN
The Next Generation of Digital Trust.
Modern enterprises require more than authentication. SLC Guardian replaces software-based trust with hardware-rooted cryptographic proof.
TRADITIONAL MFA
Passwords
SMS
Push approval
Software keys
Probabilistic verification
SLC GUARDIAN
Hardware-rooted identity
Secure private channel
Cryptographic assurance
Secure Element
Deterministic trust
INSIGHTS
From the SLC blog.

Friction Isn't the Real Problem. Wrong-Layer Authentication Is.
Payment friction kills customer lifetime value — but most of the friction conversation misses the real cause. A look at why authentication friction is an infrastructure problem, not a UX one.
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The Rails Are Built. The Trust Layer Isn't.
Latin America has built world-class payment rails. But fraud losses are scaling alongside adoption — because the identity layer underneath was never upgraded. A look at the trust gap shaping the next phase of digital payments.
Read more

Phishing-Resistant MFA: What It Actually Means and Where the Industry Falls Short
CISA calls phishing-resistant MFA the gold standard. But FIDO2 keys and passkeys only solve half the problem. Learn what phishing-resistant authentication actually requires — and what's still missing.
Read more
