OTP/2FA: secure your access!
Add a single-use code to sensitive steps: login, payment, reset and device validation with One Time Password...
Send by SMS, email or push. RGPD compliant, fast integration via efiREST API.

OTP SMS or email: principle in 30 seconds.
A single-use code, generated for a specific action and valid for a few moments. It completes the password for a strong authentication and becomes a natural part of your users' daily lives.
Two standards are common:
HOTP (counter)
TOTP (time, 30-60 s).
Designed for developers
- efiRESTsimple endpoints, standardized responses
- Webhooks: real-time status
- Controlsduration, length, tests, rate-limit, progressive locking
- Observabilityaudit logs, exports, user/device correlation
Compliance & data protection
- Data hosted in France (OVHcloud)
- Encryption in transit and at rest
- Minimization & short shelf life
- Standards HOTP (RFC 4226) & TOTP (RFC 6238)
One Time Password, a secure path from sending to confirmation
For each critical action, a temporary code is generated, routed via the most appropriate channel and checked before expiry.
Why adopt it now?
Benefits
Less fraud high resistance to phishing, credential stuffing and unauthorized access.
Conversion preserved : clear path, controlled referral, choice of channel according to context.
Compliance : helps meet RGPD, internal policies and industry requirements.
Immediate gains with OTP email or SMS (2FA)
Reduce fraud with One Time Password, codes that expire quickly, a limited number of attempts and automatic blocking in the event of repeated errors. At the same time, preserve conversion thanks to well-managed code forwarding, simple switching between SMS and email, clear messages and rapid response. On the compliance side, your data is hosted in France (OVHcloud), processed according to RGPD, with audit logs and minimal retention.

OTP workflow: from dispatch to validation
For each sensitive action, your application requires a single-use code. Efidem generates it, sends it via the most appropriate channel, then checks the entry before it expires. Attempts are limited, and each step is tracked for auditing purposes.

Where to use the OTP?
Activate verification at critical moments: access, sensitive transactions and identity changes. One mechanism, multiple scenarios.

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