The US government may have created a powerful exploit tool, Coruna, that could be sold and spread to bad actors. The toolkit contains five hacking techniques that can exploit 23 vulnerabilities found in old iOS versions. It is believed that the US government lost control of the tool and it ended up being sold on the black market for millions. Coruna has spread among cybercriminals, with different variants being used for different purposes. iVerify found that around 42,000 devices may have been hacked using this tool. The only good exploit is a patched one.