The Guardian: Deloitte hit by cyber-attack revealing clients’ secret emails

The Guardian: Deloitte hit by cyber-attack revealing clients’ secret emails. “One of the world’s ‘big four’ accountancy firms has been targeted by a sophisticated hack that compromised the confidential emails and plans of some of its blue-chip clients, the Guardian can reveal. Deloitte, which is registered in London and has its global headquarters in New York, was the victim of a cybersecurity attack that went unnoticed for months.”