Snowflake, Column Level Security, Dynamic Data Masking.
create or replace table tag_customer ( customer_id varchar(), first_name varchar(), last_name varchar(), gender varchar(6), govt_id varchar(100) with tag (pii_policy_tag = 'PII'), date_of_birth date, annual_income number(38,2), credit_card_number varchar(20) with tag (pii_policy_tag = 'PII'),