diff --git a/.jules/sentinel.md b/.jules/sentinel.md
new file mode 100644
index 0000000..94f89d5
--- /dev/null
+++ b/.jules/sentinel.md
@@ -0,0 +1,5 @@
+
+## 2024-05-24 - Fix sensitive information leakage in RPC error messages
+**Vulnerability:** Internal RPC connection error messages (which may contain internal network or configuration details) were being leaked directly to Discord users via `message.reply(err.message)`.
+**Learning:** Returning unhandled or raw errors from a backend system (like bitcoind-rpc) to the frontend (Discord client) exposes internal system details to potential attackers.
+**Prevention:** Catch all errors from backend system calls and respond to users with generic error messages while logging the actual `err` object internally for debugging (e.g. using `console.error`).
diff --git a/bot/modules/dogeTipper.js b/bot/modules/dogeTipper.js
index 54258df..4c5321b 100644
--- a/bot/modules/dogeTipper.js
+++ b/bot/modules/dogeTipper.js
@@ -158,7 +158,7 @@ function doWithdraw(message, tipper, words, helpmsg) {
       }
       doge.sendFrom(tipper, address, Number(amount), function (err, txId) {
         if (err) {
-          message.reply(err.message).then((message) => message.delete(10000));
+          console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
         } else {
           message.channel.send({
             embed: {
@@ -263,7 +263,7 @@ function doTip(bot, message, tipper, words, helpmsg) {
 function sendDOGE(bot, message, tipper, recipient, amount, privacyFlag) {
   getAddress(recipient.toString(), function (err, address) {
     if (err) {
-      message.reply(err.message).then((message) => message.delete(10000));
+      console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
     } else {
       doge.sendFrom(
         tipper,
@@ -274,7 +274,7 @@ function sendDOGE(bot, message, tipper, recipient, amount, privacyFlag) {
         null,
         function (err, txId) {
           if (err) {
-            message.reply(err.message).then((message) => message.delete(10000));
+            console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
           } else {
             if (privacyFlag) {
               let userProfile = message.guild.members.get(recipient); // ⚡ Bolt: O(1) direct ID lookup vs O(N) linear search;
diff --git a/bot/modules/exampleTipper.js b/bot/modules/exampleTipper.js
index 25be559..f381fd8 100644
--- a/bot/modules/exampleTipper.js
+++ b/bot/modules/exampleTipper.js
@@ -143,7 +143,7 @@ function doWithdraw(message, tipper, words, helpmsg) {
       }
       ltc.sendFrom(tipper, address, Number(amount), function(err, txId) {
         if (err) {
-          message.reply(err.message).then(message => message.delete(10000));
+          console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
         } else {
         message.channel.send({embed:{
         title: '**:outbox_tray::money_with_wings::moneybag:Litecoin (LTC) Transaction Completed!:moneybag::money_with_wings::outbox_tray:**',
@@ -228,11 +228,11 @@ function doTip(bot, message, tipper, words, helpmsg) {
 function sendLTC(bot, message, tipper, recipient, amount, privacyFlag) {
   getAddress(recipient.toString(), function(err, address) {
     if (err) {
-      message.reply(err.message).then(message => message.delete(10000));
+      console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
     } else {
           ltc.sendFrom(tipper, address, Number(amount), 1, null, null, function(err, txId) {
               if (err) {
-                message.reply(err.message).then(message => message.delete(10000));
+                console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
               } else {
                 if (privacyFlag) {
                   let userProfile = message.guild.members.get(recipient) // ⚡ Bolt: O(1) direct ID lookup vs O(N) linear search;
diff --git a/bot/modules/ftcTipper.js b/bot/modules/ftcTipper.js
index 22bb0b9..5d0e206 100644
--- a/bot/modules/ftcTipper.js
+++ b/bot/modules/ftcTipper.js
@@ -158,7 +158,7 @@ function doWithdraw(message, tipper, words, helpmsg) {
       }
       ftc.sendFrom(tipper, address, Number(amount), function (err, txId) {
         if (err) {
-          message.reply(err.message).then((message) => message.delete(10000));
+          console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
         } else {
           message.channel.send({
             embed: {
@@ -263,7 +263,7 @@ function doTip(bot, message, tipper, words, helpmsg) {
 function sendFTC(bot, message, tipper, recipient, amount, privacyFlag) {
   getAddress(recipient.toString(), function (err, address) {
     if (err) {
-      message.reply(err.message).then((message) => message.delete(10000));
+      console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
     } else {
       ftc.sendFrom(
         tipper,
@@ -274,7 +274,7 @@ function sendFTC(bot, message, tipper, recipient, amount, privacyFlag) {
         null,
         function (err, txId) {
           if (err) {
-            message.reply(err.message).then((message) => message.delete(10000));
+            console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
           } else {
             if (privacyFlag) {
               let userProfile = message.guild.members.get(recipient); // ⚡ Bolt: O(1) direct ID lookup vs O(N) linear search;
diff --git a/bot/modules/lbcTipper.js b/bot/modules/lbcTipper.js
index 09ff576..da88412 100644
--- a/bot/modules/lbcTipper.js
+++ b/bot/modules/lbcTipper.js
@@ -158,7 +158,7 @@ function doWithdraw(message, tipper, words, helpmsg) {
       }
       lbc.sendFrom(tipper, address, Number(amount), function (err, txId) {
         if (err) {
-          message.reply(err.message).then((message) => message.delete(10000));
+          console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
         } else {
           message.channel.send({
             embed: {
@@ -263,7 +263,7 @@ function doTip(bot, message, tipper, words, helpmsg) {
 function sendLBC(bot, message, tipper, recipient, amount, privacyFlag) {
   getAddress(recipient.toString(), function (err, address) {
     if (err) {
-      message.reply(err.message).then((message) => message.delete(10000));
+      console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
     } else {
       lbc.sendFrom(
         tipper,
@@ -274,7 +274,7 @@ function sendLBC(bot, message, tipper, recipient, amount, privacyFlag) {
         null,
         function (err, txId) {
           if (err) {
-            message.reply(err.message).then((message) => message.delete(10000));
+            console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
           } else {
             if (privacyFlag) {
               let userProfile = message.guild.members.get(recipient); // ⚡ Bolt: O(1) direct ID lookup vs O(N) linear search;
diff --git a/bot/modules/protonTipper.js b/bot/modules/protonTipper.js
index 53da2cd..048efb7 100644
--- a/bot/modules/protonTipper.js
+++ b/bot/modules/protonTipper.js
@@ -158,7 +158,7 @@ function doWithdraw(message, tipper, words, helpmsg) {
       }
       proton.sendFrom(tipper, address, Number(amount), function (err, txId) {
         if (err) {
-          message.reply(err.message).then((message) => message.delete(10000));
+          console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
         } else {
           message.channel.send({
             embed: {
@@ -263,7 +263,7 @@ function doTip(bot, message, tipper, words, helpmsg) {
 function sendPROTON(bot, message, tipper, recipient, amount, privacyFlag) {
   getAddress(recipient.toString(), function (err, address) {
     if (err) {
-      message.reply(err.message).then((message) => message.delete(10000));
+      console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
     } else {
       proton.sendFrom(
         tipper,
@@ -274,7 +274,7 @@ function sendPROTON(bot, message, tipper, recipient, amount, privacyFlag) {
         null,
         function (err, txId) {
           if (err) {
-            message.reply(err.message).then((message) => message.delete(10000));
+            console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
           } else {
             if (privacyFlag) {
               let userProfile = message.guild.members.get(recipient); // ⚡ Bolt: O(1) direct ID lookup vs O(N) linear search;
diff --git a/bot/modules/pxcTipper.js b/bot/modules/pxcTipper.js
index db95dc4..6c2597e 100644
--- a/bot/modules/pxcTipper.js
+++ b/bot/modules/pxcTipper.js
@@ -158,7 +158,7 @@ function doWithdraw(message, tipper, words, helpmsg) {
       }
       pxc.sendFrom(tipper, address, Number(amount), function (err, txId) {
         if (err) {
-          message.reply(err.message).then((message) => message.delete(10000));
+          console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
         } else {
           message.channel.send({
             embed: {
@@ -263,7 +263,7 @@ function doTip(bot, message, tipper, words, helpmsg) {
 function sendPXC(bot, message, tipper, recipient, amount, privacyFlag) {
   getAddress(recipient.toString(), function (err, address) {
     if (err) {
-      message.reply(err.message).then((message) => message.delete(10000));
+      console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
     } else {
       pxc.sendFrom(
         tipper,
@@ -274,7 +274,7 @@ function sendPXC(bot, message, tipper, recipient, amount, privacyFlag) {
         null,
         function (err, txId) {
           if (err) {
-            message.reply(err.message).then((message) => message.delete(10000));
+            console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
           } else {
             if (privacyFlag) {
               let userProfile = message.guild.members.get(recipient); // ⚡ Bolt: O(1) direct ID lookup vs O(N) linear search;
diff --git a/bot/modules/rvnTipper.js b/bot/modules/rvnTipper.js
index 814abc4..f5a49df 100644
--- a/bot/modules/rvnTipper.js
+++ b/bot/modules/rvnTipper.js
@@ -158,7 +158,7 @@ function doWithdraw(message, tipper, words, helpmsg) {
       }
       rvn.sendFrom(tipper, address, Number(amount), function (err, txId) {
         if (err) {
-          message.reply(err.message).then((message) => message.delete(10000));
+          console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
         } else {
           message.channel.send({
             embed: {
@@ -263,7 +263,7 @@ function doTip(bot, message, tipper, words, helpmsg) {
 function sendRVN(bot, message, tipper, recipient, amount, privacyFlag) {
   getAddress(recipient.toString(), function (err, address) {
     if (err) {
-      message.reply(err.message).then((message) => message.delete(10000));
+      console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
     } else {
       rvn.sendFrom(
         tipper,
@@ -274,7 +274,7 @@ function sendRVN(bot, message, tipper, recipient, amount, privacyFlag) {
         null,
         function (err, txId) {
           if (err) {
-            message.reply(err.message).then((message) => message.delete(10000));
+            console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
           } else {
             if (privacyFlag) {
               let userProfile = message.guild.members.get(recipient); // ⚡ Bolt: O(1) direct ID lookup vs O(N) linear search;
diff --git a/bot/modules/ufoTipper.js b/bot/modules/ufoTipper.js
index 74c1cd5..c57319e 100644
--- a/bot/modules/ufoTipper.js
+++ b/bot/modules/ufoTipper.js
@@ -162,7 +162,7 @@ function doWithdraw(message, tipper, words, helpmsg) {
       }
       ufo.sendFrom(tipper, address, Number(amount), function (err, txId) {
         if (err) {
-          message.reply(err.message).then((message) => message.delete(10000));
+          console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
         } else {
           message.channel.send({
             embed: {
@@ -267,7 +267,7 @@ function doTip(bot, message, tipper, words, helpmsg) {
 function sendUFO(bot, message, tipper, recipient, amount, privacyFlag) {
   getAddress(recipient.toString(), function (err, address) {
     if (err) {
-      message.reply(err.message).then((message) => message.delete(10000));
+      console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
     } else {
       ufo.sendFrom(
         tipper,
@@ -278,7 +278,7 @@ function sendUFO(bot, message, tipper, recipient, amount, privacyFlag) {
         null,
         function (err, txId) {
           if (err) {
-            message.reply(err.message).then((message) => message.delete(10000));
+            console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
           } else {
             if (privacyFlag) {
               let userProfile = message.guild.members.get(recipient); // ⚡ Bolt: O(1) direct ID lookup vs O(N) linear search;
diff --git a/bot/modules/vtlTipper.js b/bot/modules/vtlTipper.js
index 040a3fa..be625b0 100644
--- a/bot/modules/vtlTipper.js
+++ b/bot/modules/vtlTipper.js
@@ -158,7 +158,7 @@ function doWithdraw(message, tipper, words, helpmsg) {
       }
       vtl.sendFrom(tipper, address, Number(amount), function (err, txId) {
         if (err) {
-          message.reply(err.message).then((message) => message.delete(10000));
+          console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
         } else {
           message.channel.send({
             embed: {
@@ -263,7 +263,7 @@ function doTip(bot, message, tipper, words, helpmsg) {
 function sendVTL(bot, message, tipper, recipient, amount, privacyFlag) {
   getAddress(recipient.toString(), function (err, address) {
     if (err) {
-      message.reply(err.message).then((message) => message.delete(10000));
+      console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
     } else {
       vtl.sendFrom(
         tipper,
@@ -274,7 +274,7 @@ function sendVTL(bot, message, tipper, recipient, amount, privacyFlag) {
         null,
         function (err, txId) {
           if (err) {
-            message.reply(err.message).then((message) => message.delete(10000));
+            console.error(err); message.reply('An internal error occurred while processing your transaction.').then((message) => message.delete(10000));
           } else {
             if (privacyFlag) {
               let userProfile = message.guild.members.get(recipient); // ⚡ Bolt: O(1) direct ID lookup vs O(N) linear search;