Ghost hackers: the cybersecurity mystery that nobody has solved

The article revisits the Shadow Brokers incident, where an anonymous group published a trove of alleged NSA hacking tools in 2016 — notably EternalBlue — and outlines how those leaked zero-day exploits were later weaponized in global attacks such as WannaCry and NotPetya, causing widespread damage and underscoring the risk of intelligence-held vulnerabilities leaking to criminal or state actors.