Study of 85 Crypto Wallet Extensions Finds Address Leaks and Cross-Site Tracking Risks

Researchers tested 85 popular crypto wallet browser extensions and found that they can leak information, allowing addresses to be linked and users to be tracked. The communication between these wallets and websites or blockchain servers can connect a person's separate addresses, enabling outsiders to follow their activity across sites. This tracking risk is further exacerbated when a website already possesses identifying information about the user. The study highlights potential privacy risks associated with using crypto wallet extensions. The extensions' behavior can compromise user anonymity, potentially tying online activities to individual identities.