Notepad++ 2025 Supply Chain Attack: A Deep Dive into the Lotus Panda Breach
Between June and December 2025, the popular text editor Notepad++ experienced a significant supply chain attack. State-sponsored actors, identified as the Chinese group Lotus Panda, compromised the software's update infrastructure by infiltrating its shared hosting provider. This breach allowed them to intercept and redirect update requests, delivering malicious installers to targeted users. The attackers employed sophisticated techniques, including DLL side-loading and the deployment of a custom backdoor named Chrysalis, to gain unauthorized access to systems. The campaign was highly selective, focusing on organizations in sectors such as telecommunications, finance, and government across regions including East Asia, the Philippines, and Vietnam. ([kaspersky.com](https://www.kaspersky.com/about/press-releases/kaspersky-great-uncovers-hidden-attack-chains-in-notepad-supply-chain-compromise?utm_source=openai)) This incident underscores the escalating threat of supply chain attacks, where trusted software distribution channels are exploited to infiltrate systems. The Notepad++ compromise highlights the necessity for organizations to implement stringent software update verification processes and to remain vigilant against potential vulnerabilities in third-party software components.
Kill Chain
