Deputy Transport Minister Siripong says the Land Transport Department's vehicle registration and personal data was published online, and a website that looks up owners by plate number was found. The case has been referred to the National Cyber Security Agency (NCSA), which is still gathering facts. For a business owner, the practical step is to check that any staff, customer or fleet data you hold tied to plate numbers is protected, and to be ready for possible PDPA-related questions from customers whose details may be exposed. No new obligation has been announced yet.