The unauthorized collection of data was lasted for three years, which includes many cities views. Korean regulator have asked google to delete all the data and also specify not to use in future.
As Google already accepted the claims and provide a statement in respect of fine-
We work hard to get privacy right at Google. As we have said before, we are sorry for having mistakenly collected payload data from unencrypted networks. Since we announced our mistake in 2010, we have worked closely with the Korean Communications Commission and tightened up our systems to address the issue. The project leaders never wanted this data, and didn’t use it or even look at it.Korean is being late come up to fine Google, as earlier most of the authorities have already penalized Google in Street View initiative. Countries which penalized Google for this are Germany $189,000 , Belgium $205,000 , France $136,000 , US cost $7 million, and also got the warning from UK regulators.