WhatsApp Says No Data Leak WhatsApp Says No Data Leak. WhatsApp insists there hasn’t been a data leak. But does that really matter though? Close to half a billion WhatsApp users had their numbers put up for sale on the dark web. Share WebsitecyberRelated Posts:DeeplinksWeb Security Insights for CISOsAuscert Security BulletinsArtificial Intelligence AI PodcastInternet Storm Centre PodcastComodo NewsExploit Monday Security ResearchBlack Hat Announcements