iOS wallet users have been warned about worse_query, a container sandbox escape vulnerability that can undermine the separation between apps. The flaw does not automatically steal assets. Risk arises when users install and run an IPA file from an untrusted source, allowing that app to read other applications' containers. Wallets that store mnemonic phrases, keystores or WebView caches in plaintext on the device could therefore expose sensitive data. SlowMist's chief information security officer 23pds advised users to update iOS to the latest version and avoid installing applications from unknown sources.