What Facebook should do to avoid data breach again?

Social media giant Facebook is facing its biggest crisis ever as it struggles to contain the damage from the latest data privacy scandal.

Following revelations that a consultancy, Cambridge Analytica, had improperly accessed information on about 50 million Facebook users to deliver targeted political ads, the US internet giant confronts the prospect of investigations from multiple agencies and jurisdictions.

The company’s data practices, and even its business model, are being called into question.