The invention relates to a
data classification based data leakage prevention method and
system, which can further improve the data leakage prevention effect. The
data classification based data leakage prevention method comprises the steps as follows: A, designing a basic data classifier, B, defining various elements of DSL (domain specific languages) to form a data leakage strategy
library, C, detecting input data via the DSL strategy
library, executing defined response in the strategy, and writing time which violates the strategy into a data leakage event
database, D, obtaining data, E, executing defined corresponding operation on the violated data, and F, performing
statistical classification on the violated data leakage events, and displaying at a
client. The
data classification based data leakage prevention
system comprises a basic classifier management module, a DSL strategy defining and editing module, a DSL
strategy analysis execution module, a
data access module, a data protection response module and an
event management module.