A security vulnerability on decentralized exchange, Loopring, was identified and quickly patched before it could be exploited.
Source: https://cointelegraph.com/news/loopring-dex-quickly-fixes-major-bug-before-it-can-be-exploited
Loopring DEX Quickly Fixes Major Bug Before It Can Be Exploited
May 7, 2020
CoinTelegraph