Your own 2FA system.
Built by the people who live and breathe 2FA.
We don't just sell a 2FA product — we've spent years building one from scratch. TOTP, HOTP, push notifications, hardware tokens, biometric flows — we've implemented them all. Now we build custom 2FA systems for enterprises who need full control.
Third-party 2FA is a liability for enterprises at scale
When authentication is core to your business, you can't afford to depend on someone else's roadmap, uptime, or data policies.
Full Data Sovereignty
Your authentication data stays in your infrastructure. No third-party servers. No shared tenancy. Complete control over where your secrets live.
Compliance on Your Terms
SOC 2, ISO 27001, HIPAA, PCI DSS, GDPR — build the exact compliance posture your regulators require, not what a vendor happens to support.
Zero Vendor Lock-In
Your codebase. Your servers. Your roadmap. When a third-party 2FA provider has an outage, your users don't care whose fault it is — they blame you.
Custom Authentication Flows
Step-up authentication, adaptive MFA, risk-based challenges, device trust scoring — build exactly the flows your product needs, not what a generic API allows.
Scale Without Per-User Pricing
At 100K+ users, per-seat 2FA pricing becomes absurd. An in-house system costs the same whether you have 100K or 10M users.
Deep Integration
Plug directly into your existing identity stack — Active Directory, LDAP, OAuth, SAML, custom session management. No adapter layers or webhook workarounds.
Every 2FA method. Every platform. Production-hardened.
We've implemented every major 2FA standard in production. Here's what we can build for you.
TOTP / HOTP
RFC 6238 / RFC 4226 compliant. Compatible with Google Authenticator, Authy, and every major authenticator app. QR provisioning, backup codes, and recovery flows.
Push Notifications
Native push-based authentication for iOS and Android. Approve/deny with a tap. Includes device binding, jailbreak detection, and transaction signing.
Biometric Authentication
Face ID, Touch ID, Windows Hello, and Android biometrics. FIDO2/WebAuthn integration for passwordless flows. Platform authenticator support.
Hardware Security Keys
FIDO U2F and FIDO2/WebAuthn. YubiKey, Titan, and any CTAP2-compliant device. Attestation verification, resident keys, and enterprise attestation.
SMS & Voice OTP
Carrier-grade SMS and voice delivery with intelligent failover. Number verification, SIM swap detection, and rate limiting built in.
Adaptive & Risk-Based MFA
Step-up authentication triggered by risk signals — new device, unusual location, sensitive action. Machine learning models for anomaly detection.
From architecture to production in weeks, not months
We've done this before. Multiple times. Our process is battle-tested.
Discovery & Architecture
We audit your current auth stack, map your compliance requirements, and design the 2FA architecture. You get a detailed technical spec and timeline.
Build & Integrate
Our team builds the system, integrates it with your identity stack, and runs security testing. Weekly demos so you see progress in real time.
Deploy & Support
Phased rollout with monitoring. We handle the migration, provide runbooks, and offer ongoing support. Your team gets full training and ownership.
We didn't read about 2FA. We built it.
el2FA isn't a side project — it's a production 2FA platform used by hundreds of teams. We built the entire stack from scratch.
Full-Stack 2FA Product
We built el2FA end-to-end: encrypted TOTP vaults, team sharing, multi-device sync, push notifications, QR provisioning, backup codes, audit logging, and admin controls. This isn't theoretical knowledge — it's shipped code.
Cryptography in Production
AES-256-GCM encryption, PBKDF2 key derivation, secure key exchange protocols, HSM integration. We've implemented real cryptographic systems that protect real secrets at scale.
Cross-Platform Native Apps
iOS, Android, and web clients — all connected to the same encrypted backend. We know the platform-specific challenges: Keychain, Keystore, biometric APIs, push notification infrastructure.
Built for industries where 2FA isn't optional
Financial Services
PSD2 Strong Customer Authentication, transaction signing, regulatory-grade audit trails. We understand the compliance landscape banks and fintechs navigate.
Healthcare
HIPAA-compliant authentication for EHR systems, patient portals, and telehealth platforms. Role-based MFA with clinical workflow awareness.
Government & Defense
NIST 800-63 AAL2/AAL3 compliant. Air-gapped deployment options. PIV/CAC card integration. FedRAMP-ready architecture.
SaaS & Technology
White-label 2FA for your product. Let your customers enable MFA without you building it from scratch. APIs, SDKs, and embeddable widgets.
Telecommunications
SIM-based authentication, network-level 2FA, subscriber identity verification. Built for carrier-scale throughput and reliability.
Critical Infrastructure
SCADA and OT system access control. Offline-capable 2FA for environments without reliable connectivity. Hardware token support for air-gapped networks.
Let's build your 2FA system.
Tell us about your authentication challenges. We'll show you exactly how we'd solve them — with a detailed technical proposal, timeline, and fixed-price quote.
No sales deck. No fluff. Just engineers talking to engineers.