#sms

2 articles tagged sms.

29 Aug 202619 min read

Two-way SMS for service businesses: confirmations that answer back

A reminder tells the customer something. A confirmation tells your calendar something — and only one of those lets you refill the slot. The virtual number that makes replies possible, the matching problem nobody warns you about, parsing what people actually type in three languages, and the Odoo automations that reschedule without a human.

smsautomationodooarchitecture

28 Aug 202618 min read

SMS for 2FA: what it's still good for, and what it isn't

SIM-swap risk is real; so is the customer who will never install an authenticator app. An honest matrix of SMS OTP against TOTP and passkeys — plus the attack that shows up on your invoice instead of your incident channel, the network APIs that turn a phone number back into a useful signal, and why the recovery path decides your real security level, not the login screen.

securitysmsarchitecture