TRAI 24-Hour Cool-Off
Definition
Telecom Regulatory Authority of India directive (2018 and tightened thereafter) requiring that after a SIM swap the new SIM cannot be used for OTP-bearing transactions for 24 hours. The window forces the rightful subscriber to notice the original SIM going silent and dispute the swap before financial fraud completes.
Related terms
- CLI Spoofing
- Caller Line Identification spoofing: the caller forges the Calling Party Number sent in the SS7 IAM or SIP From header so the...
- IMSI Catcher
- A rogue base station (commercial: Stingray, Hailstorm, KingFisher; research: USRP plus srsRAN or YateBTS) that impersonates a cellular cell, forces nearby phones...
- Phreaking
- Tone-based exploitation of the public switched telephone network, pioneered in the 1960s and 1970s. The 2600 Hz tone, generated by a toy...
- QRJacking
- Physical replacement or overlay of a legitimate merchant QR (typically a UPI QR at a shop counter) with a fraudster's QR pointing...
- SIM Swap
- Fraud pattern where the attacker convinces the telco to port the victim's MSISDN to a SIM the attacker holds. Once active, the...
Explained in
- Wireless and Mobile Network Attacks: Phreaking, SIM Swap, NFC and QRTelecom Regulatory Authority of India directive (2018 and tightened thereafter) requiring that after a SIM swap the new SIM cannot be used for OTP-bearing tran...