Back Securityboulevard

NSFOCUS Monthly APT Insights – November 2025

Securityboulevard • December 31, 2025

... cyber security leader, protects enterprises and carriers from advanced cyber attacks ... The Cyber - attack Operation by the Indian APT Group BITTER ...

The full story

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

APT Groups BITTER and ArcaneDoor Target Enterprises with Cyber Attacks In November 2025, the Indian APT group BITTER launched a cyber attack targeting enterprises and carriers. Earlier, in September 2025, the APT group ArcaneDoor exploited a zero-day vulnerability in the Cisco Adaptive Firewall to conduct attacks, highlighting ongoing threats from advanced persistent threats (APTs). 2 sources 35

Extracted Entities

APT Groups (1)

Bitter