Deloitte breach! All you need to know

Deloitte, one of the world's leading accountancy firms, was hit by a destructive cyber-attack in November last year that compromised secret client emails and other records.

Deloitte is conducting an internal inquiry into the data breach but hasn't disclosed how much data was breached following the cyber-attack.

When and how did the breach occur?

First revealed by The Guardian, Deloitte's systems in the United States were probably breached between October and November of last year but the firm discovered it as late as in March of this year.