Silk Typhoon spun a web of patents for offensive cyber tools, report says

Security researchers reviewing a DOJ indictment and related filings identified at least 16 patents filed between 2014–2020 by Chinese front companies tied to the MSS and the Silk Typhoon/Hafnium crew. The patents describe offensive capabilities — drive decryption, network sniffers, mobile forensics, and spyware — that align with targeted espionage; the reporting links these entities to the 2021 Microsoft Exchange zero-day campaign and other intrusions, suggesting sophisticated nation-state tooling potentially used for surveillance and covert operations.