Intelligence Insights: December 2025

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Sha1-Hulud Worms into Top 10 Threats in December 2025 In December 2025, the Sha1-Hulud malware emerged as a significant threat, entering the top 10 list of cybersecurity concerns. Additionally, new tools ScreenConnect and MacSync made their debut, indicating evolving tactics in the cybersecurity landscape. Organizations are urged to remain vigilant against these emerging threats. 1 sources 22