# Jailbreak detection, i18Next first steps - Mon 26th Oct, 2020 Adding app security this week. I added a check for jailbroken devices using the [jail-monkey](https://www.npmjs.com/package/jail-monkey). It seems well used and supported, but I'm not sure how to actually test it's working yet! Also started work on adding translation / localisation support into C+. [react-i18next](https://react.i18next.com/) supports React Native. It is widely used, but I have not been super thrilled with its documentation, nor its TS typings, so far. I'm sure I'll have some useful takeaways soon. ###### tags: `programmingjournal` `2020` `C+` `security` `jailbreak` `translationlocalisation` `i18next`