Good, bad and ugly of big data

Facebook founder Mark Zuckerberg took out full-page ads in British and American newspapers on Sunday to apologize for a "breach of trust" in the Cambridge Analytica scandal, admitting the quiz app built by a university researcher that leaked Facebook data of millions of people in 2014 was a "breach of trust".

Since the scandal broke, the public has become more aware and concerned about how their online behavior may be used for purposes to which they have not consented. It underscores the urgent need for better protection of personal information.

To better protect personal data privacy, targeted legislation is needed. More effective multilateral cooperation should be carried out to formulate guidelines to protect people online as soon as possible.