Automated WhatsApp UPI Verification SMS

Number: [PHONE] Category: Automated SMS Gateway / Unsolicited Verification Code Incident Summary An automated background SMS was generated targeting the number [PHONE] with an encrypted payload beginning with WAAXISUPI followed by an alphanumeric security hash (e.g., AXISNC...). The device's default messaging app flagged the outgoing communication with a smishing and phishing warning due to the unsaved recipient number. Technical Context * Service Origin: The prefix WAAXISUPI represents the WhatsApp Payment platform operated in partnership with Axis Bank. * Trigger Mechanism: This is an auto-sent SIM/device verification SMS triggered during UPI registration or account re-validation to authenticate hardware identity with the bank gateway. * Spam Filter Trigger: Because [PHONE] is an unrecognized virtual server number, native OS security filters automatically mark the background traffic as suspicious. Assessment & Action * Authorized Attempt: If you recently initiated WhatsApp Pay setup or bank linking, this message is legitimate system traffic. * Uninitiated / Unsolicited: If generated automatically without user prompt, it represents either an background retry loop or an unauthorized attempt to register UPI on your number. Block the gateway and do not share the code string with anyone.