The real security threat is the NSA tools, which still remains publicly available and can be exploited to create more WannaCry-like programs or something even scarier.
To note, the tools have already been re-purposed quite a few times.
Recent attacks carried out from NSA tools
Last year, the ransomware attack that disrupted several services in the city of Atlanta was caused by the leaked NSA tools. Additionally, they have also been used to infect networks for mining cryptocurrency or carrying out planned DDoS attacks.