Japanese media group Nikkei discloses cyberattack targeting journalistic sources

Why this matters: Source confidentiality is not a technicality. It is the reason people talk to journalists at all. When a media company's email gets compromised, the damage is not just to the outlet. It can land on the people who trusted them with sensitive information, sometimes people who took real risks to speak up. Nikkei covers finance, business, and policy across Asia. The sources in those email threads may have had a lot to lose. A breach like this is a reminder that protecting sources requires treating their information with the same security discipline as any other high-value asset.