Definition ∞ A browser extension attack involves malicious software disguised as a legitimate browser add-on, designed to compromise user data or digital assets. These extensions gain access to browser functions, enabling them to intercept sensitive information like wallet credentials or transaction details. They often inject malicious scripts into web pages or redirect users to phishing sites. Such attacks exploit user trust and browser permissions to facilitate theft.
Context ∞ Browser extension attacks pose a significant and ongoing threat to users interacting with decentralized applications and cryptocurrency exchanges. The ease with which malicious extensions can mimic legitimate ones, coupled with users granting broad permissions, makes these vectors particularly dangerous. Security efforts focus on stricter vetting processes for extension marketplaces and educating users on best practices for digital hygiene. Vigilance against deceptive software remains paramount for asset protection.
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