Overview
This presentation explains the Ndax® sign-in experience, security considerations, common user flows, recovery options, and recommended UI patterns. Content is written for product managers, UX designers, and support teams who want a clear, accessible sign-in flow for customers worldwide.
Why secure sign-in matters
Signing in is the first line of defense for user accounts. A well-designed login reduces friction while maintaining security: faster access for legitimate users, and strong deterrents for bad actors. We'll walk through email/password flow, 2FA (two-factor authentication), device trust, and recovery procedures.
Goals for the sign-in experience
- Fast, predictable login for returning users.
- Clear guidance when errors occur (invalid password, locked account).
- Strong protection for high-value actions (trades, withdrawals).
- Accessible and mobile-friendly UI for all users.
Primary login flows
1 — Standard email & password
Users enter their registered email and password. On success, prompt for optional device trust and offer to enable 2FA if not already enabled. On repeated failures, present a rate-limited lockout and help options.
2 — Two-Factor Authentication (2FA)
2FA via authenticator apps (TOTP) is recommended. Ndax® also supports SMS and hardware keys (WebAuthn) where available. For high-risk actions, require 2FA even if users opted out previously.
3 — Passwordless / Email Magic Link (optional)
Magic links sent to the user's email can reduce password fatigue. Ensure the link expires quickly and present a one-click sign-in confirmation screen describing the device and IP address used.
Accessibility & error handling
Ensure forms have proper labels, keyboard focus order, and visible error messages. Use descriptive, actionable messages: avoid "Something went wrong" and prefer "We couldn't find that email. Try again or create a new account."
Security controls & best practices
- Rate-limit failed attempts and put progressive delays in place.
- Notify users by email when a new device signs in.
- Use device fingerprinting only for fraud detection; be transparent in the privacy policy.
- Encourage and reward enabling 2FA with subtle product benefits.
Recovery & support
Provide clear account recovery paths: password reset via email, support ticket if the user has lost 2FA, and identity verification for account restoration. Display expected time frames and privacy safeguards in the flow.
User interface examples
Below are exemplar patterns and copy that reduce confusion and surface the right options at the right times.
Login form copy (recommended)
Subheader: Secure access to trading, deposits and withdrawals
Button: Sign in — Use your NDAX credentials
Error copy examples
Invalid password: That password doesn't look right. Try again or reset your password.
Account locked: Too many attempts. Your account has been temporarily locked — a recovery email will be sent.
2FA required: Enter the code from your authenticator app or use a backup code.
Design resources & brand colors
Use the palette below when building the UI. Maintain high contrast for accessibility and consistent CTA colors across the site and app.
Microcopy tips
Keep labels short, use consistent capitalization, and place helper text beneath inputs. For example: "Remember this device for 30 days" instead of generic "Remember me."
Operations & monitoring
Track login success rate, average time to sign-in, failed attempt spike anomalies, and 2FA adoption. Define alert thresholds and a runbook for suspicious activity.
Incident response (login-related)
- Identify suspicious pattern (e.g., unusual geographic attempts).
- Throttle or block offending IPs and notify affected users.
- Rollout temporary protective measures and begin forensic logging.
Summary & next steps
Implement the standard email/password flow, make 2FA highly visible, and track key metrics. Prioritize clear recovery flows and crisp, actionable copy. For launch, ensure the help center and support teams are ready to assist with common login issues.