Major decentralized exchange (DEX) Uniswap has upgraded its privacy policy and now collects certain on-chain and off-chain data from users, a move that has attracted the ire of some members of the crypto community.
Uniswap Labs, the development firm behind Uniswap, announced the news in its privacy policy update in a November 11 post, which ostensibly fell under the radar due to the FTX fiasco and went unnoticed until November 21 after Chinese reporter Colin Wu shared it on Twitter.
“We do want to make data-driven decisions that improve user experience,” Uniswap Labs said in the announcement. “That includes public on-chain data and limited off-chain data like device type, browser version, etc.”
According to the new policy, Uniswap Labs collects on-chain data that include publicly available information like wallet addresses and transaction history. The platform claimed this is needed to “learn more” about users’ behavior and “screen [their] wallet(s) for any prior illicit activity.”
Notably, the exchange will also collect off-chain data like browser type, operating system, referring and exit pages, device or browser language, and other information. Furthermore, it collects information from “localStorage, mobile deviceID, cookies, web beacons, and other similar technologies” to “remember tokens you import, star, or add to your shopping bag,” among other things.
"Because Uniswap Labs does not collect personal data, any vendors we work with do not have any personal data either," Uniswap Labs said. "Uniswap does not share your data with any third parties for marketing purposes."
Uniswap is the largest DEX on the Ethereum blockchain. The crypto exchange has a market share of over 43%, according to data from DefiLlama. Since its
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