π²SMS and Other Web2 Providers
The MVP of Obi Multikey uses Twilio for SMS keys. This is a possible point of failure, vulnerable to:
Twilio Terms of Service updates
Legal actions
Compromised Twilio staff
Compromised Twilio infrastructure
Carrier rate limiting or blocking
SMS incompatibilities on certain networks
To remedy this, first, Obi will maintain fallback providers other than Twilio.
Once ready, Obi Service Providers will provide this service instead, preventing Obi as a company or Obi staff from being a single point of failure. See Obi Service Providers.
Similar improvement strategies are planned for other key types requiring web2 services, such as Telegram, WhatsApp, and voice authentication.
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