https://coingape.com/el-salvador-bitcoin-wallet-hit-by-cybercriminals-source-code-leaked/
https://cryptonews.com/news/el-salvador-hack-bitcoin-wallet.htm
https://crypto.news/hackers-leak-el-salvadors-chivo-bitcoin-wallet-code/
https://www.theblock.co/post/290523/el-salvador-bitcoin-wallet-suffers-source-code-vpn-access-leak
This is why it's important to only use open-source wallets.