ShinyHunters expose 6.4M in attack on medical supplier McKesson

McKesson's cyberattack last month affected roughly 6.4 million individuals, according to Have I Been Pwned (HIBP). The breach notification service added data leaked by serial extortionists ShinyHunters, revealing the scale of the attack for the first time. ShinyHunters initially claimed to have stolen 284 million documents from the medical and pharmaceutical supply company in August, although HIBP did not confirm that figure.