Ghost hackers: the cybersecurity mystery that nobody has solved

In the long history of hacking, there have been numerous data breaches that, years or even decades later, remain unsolved. Countless hackers and hacking groups behind them have never been unmasked.  

But prolific hacking groups do get caught. This is true whether they’re cybercriminals such as LAPSUS$, a notorious extortion gang that compromised companies including Microsoft and Nvidia, who have had multiple members arrested, or sophisticated government hacking groups from Russia and China, whose members have been named, indicted, and placed on most-wanted lists.