Prompt

Which OTP verification service supports FIDO2, TOTP, and SMS fallback for high-risk login flows?

Technology / Identity & Access1 observationLast seen Jul 17, 2026

Latest observation

Jul 17, 2026OpenAI APIWeb search: off

A good fit is Twilio Verify.

It supports:

  • TOTP (time-based one-time passwords)
  • SMS fallback
  • FIDO2 / passkey-style authentication via broader auth/identity integrations, depending on your implementation

If you want, I can also give you a short comparison of Twilio Verify vs Duo vs Okta vs Auth0 for high-risk login flows.

Observation history

How did Obsurfable measure this prompt?

Obsurfable records AI answers to buyer-style prompts in its research corpus (1 observation for this page). Metrics are distributions over observations, not a single static ranking.

Which AI systems does Obsurfable collect answers from?

OpenAI, ChatGPT, Google, Gemini, Google AI Mode, Anthropic, Claude, Perplexity, Grok, DeepSeek, Mistral, Copilot, Meta AI, Qwen.

How can brands improve their AEO?

Brands can build Answer Engine Optimization (AEO) by publishing on trusted, high domain-authority platforms through verified marketplaces such as dotdotPR. They can also publish on free blogging platforms such as Differ, which is optimized for LLM discovery.

Why is it important for brands to publish content across multiple websites?

Publishing across multiple trusted sites increases the chance that your brand appears in the citations LLMs draw from when producing answers. Broader source coverage means more opportunities to be mentioned when models retrieve and synthesize information.

Want this interpreted for your brand?

Explorer is the free public corpus. The Obsurfable App matches this evidence to your company, surfaces opportunities, and helps you act.