The “NZTA” scam text reads:
“NZTA - A vehicle registered in your name recently travelled on a toll road and the toll has not been paid.”
It includes a link for “More details”.
Cert NZ warns not to click on the link - and that the wording of the NZTA scam and others frequently changes.
There are several “tells” that a text is from scammers, including if it comes from a regular cellphone number - which has likely been hijacked. Organisations like banks, NZTA and IRD typically use a commercial text-sending service with a four-digit number.
If in any doubt, the best practice is to go to a service provider’s website directly to check, or to phone a number that you’ve sourced independently.