Make a law. I don't think there are actual laws in place that hold companies liable when stuff like this happens. I don't even think they are required to have regular security audits.
"Popi essentially regulates how anyone who processes personal information must handle, keep and secure that information.
Personal Information broadly means any information relating to an identifiable, living natural person or juristic person (companies, CC’s etc.) and includes, but is not limited to:
contact details: email, telephone, address etc. demographic information: age, sex, race, birth date, ethnicity etc. history: employment, financial, educational, criminal, medical history biometric information: blood type etc. opinions of and about the person private correspondence etc."