Chrome Extensions: Are You Getting More Than You Bargained For?
Symantec, Monday, January 26th, 2026
Browser extensions can be really useful, but hidden dangers may lurk beyond their marketing.The Google Chrome Web Store is a treasure trove of useful browser extensions to help make our lives easier or more fun when navigating the web.
When browsing through the store, many extensions may look tempting but hides unexpected functionality that are not apparent to users. While it's usually nice to get more than expected the extras in some cases are not always what you bargained for.
Our security research has uncovered several malicious Chrome extensions that compromises user security. These extensions, with a combined user base exceeding 100,000 users, employ tactics ranging from granting clipboard access to untrusted external domains, to using command-and-control (C&C) infrastructure with domain generation algorithms.