diff --git a/src/commands/testCrash.js b/src/commands/testCrash.js
index 0725988a..e5521c0c 100644
--- a/src/commands/testCrash.js
+++ b/src/commands/testCrash.js
@@ -2,16 +2,15 @@
 
 // This is a test example for dev testing purpose.
 
-import { Observable } from 'rxjs'
 import { createCommand, Command } from 'helpers/ipc'
 
 type Input = void
 type Result = void
 
-const cmd: Command<Input, Result> = createCommand('testCrash', () =>
-  Observable.create(() => {
-    process.exit(1)
-  }),
-)
+const cmd: Command<Input, Result> = createCommand('testCrash', () => {
+  // $FlowFixMe
+  crashTest() // eslint-disable-line
+  throw new Error()
+})
 
 export default cmd
diff --git a/src/components/modals/Debug.js b/src/components/modals/Debug.js
index bcd5284a..c87bbf9f 100644
--- a/src/components/modals/Debug.js
+++ b/src/components/modals/Debug.js
@@ -31,12 +31,16 @@ class Debug extends Component<*, *> {
     )
   }
 
-  onCrash = () => {
+  onInternalCrash = () => {
     testCrash.send().subscribe({
       error: this.error,
     })
   }
 
+  onCrashHere = () => {
+    throw new Error('CrashTest')
+  }
+
   onClickStressDevice = (device: *) => async () => {
     try {
       const currency = getCryptoCurrencyById('bitcoin')
@@ -142,8 +146,11 @@ class Debug extends Component<*, *> {
                   </Box>
                 )}
                 <Box horizontal style={{ padding: 10 }}>
-                  <Button onClick={this.onCrash} danger>
-                    crash process
+                  <Button mr={2} onClick={this.onInternalCrash} danger>
+                    crash internal
+                  </Button>
+                  <Button onClick={this.onCrashHere} danger>
+                    crash here
                   </Button>
                 </Box>
                 <Box horizontal style={{ padding: 10 }}>
diff --git a/src/helpers/anonymizer.js b/src/helpers/anonymizer.js
new file mode 100644
index 00000000..e9237fb2
--- /dev/null
+++ b/src/helpers/anonymizer.js
@@ -0,0 +1,16 @@
+// @flow
+
+export default {
+  url: (url: string): string =>
+    url
+      .replace(/\/addresses\/[^/]+/g, '/addresses/<HIDDEN>')
+      .replace(/blockHash=[^&]+/g, 'blockHash=<HIDDEN>'),
+
+  appURI: (uri: string): string => uri.replace(/account\/[^/]/g, 'account/<HIDDEN>'),
+
+  filepath: (filepath: string): string => {
+    const i = filepath.indexOf('/node_modules')
+    if (i !== -1) return `.${filepath.slice(i)}`
+    return filepath
+  },
+}
diff --git a/src/logger.js b/src/logger.js
index e2f64c76..2b4956a2 100644
--- a/src/logger.js
+++ b/src/logger.js
@@ -3,6 +3,7 @@
 import winston from 'winston'
 import Transport from 'winston-transport'
 import resolveLogsDirectory, { RotatingLogFileParameters } from 'helpers/resolveLogsDirectory'
+import anonymizer from 'helpers/anonymizer'
 
 import {
   DEBUG_NETWORK,
@@ -85,13 +86,6 @@ const logger = winston.createLogger({
   transports,
 })
 
-const anonymousMode = !__DEV__
-
-function anonymizeURL(url) {
-  if (!anonymousMode) return url
-  return url.replace(/\/addresses\/[^/]+/g, '/addresses/<HIDDEN>')
-}
-
 const logCmds = !__DEV__ || DEBUG_COMMANDS
 const logDb = !__DEV__ || DEBUG_DB
 const logRedux = !__DEV__ || DEBUG_ACTION
@@ -165,7 +159,7 @@ export default {
   },
 
   network: ({ method, url }: { method: string, url: string }) => {
-    const log = `➡📡  ${method} ${anonymizeURL(url)}`
+    const log = `➡📡  ${method} ${anonymizer.url(url)}`
     if (logNetwork) {
       logger.log('info', log, { type: 'network' })
     }
@@ -182,7 +176,7 @@ export default {
     status: number,
     responseTime: number,
   }) => {
-    const log = `✔📡  HTTP ${status} ${method} ${anonymizeURL(
+    const log = `✔📡  HTTP ${status} ${method} ${anonymizer.url(
       url,
     )} – finished in ${responseTime.toFixed(0)}ms`
     if (logNetwork) {
@@ -203,7 +197,7 @@ export default {
     error: string,
     responseTime: number,
   }) => {
-    const log = `✖📡  HTTP ${status} ${method} ${anonymizeURL(
+    const log = `✖📡  HTTP ${status} ${method} ${anonymizer.url(
       url,
     )} – ${error} – failed after ${responseTime.toFixed(0)}ms`
     if (logNetwork) {
@@ -220,9 +214,9 @@ export default {
     url: string,
     responseTime: number,
   }) => {
-    const log = `✖📡  NETWORK DOWN – ${method} ${anonymizeURL(url)} – after ${responseTime.toFixed(
-      0,
-    )}ms`
+    const log = `✖📡  NETWORK DOWN – ${method} ${anonymizer.url(
+      url,
+    )} – after ${responseTime.toFixed(0)}ms`
     if (logNetwork) {
       logger.log('info', log, { type: 'network-down' })
     }
diff --git a/src/sentry/install.js b/src/sentry/install.js
index 95a505d7..a3651e86 100644
--- a/src/sentry/install.js
+++ b/src/sentry/install.js
@@ -1,4 +1,6 @@
 // @flow
+import anonymizer from 'helpers/anonymizer'
+/* eslint-disable no-continue */
 
 require('../env')
 
@@ -11,6 +13,60 @@ export default (Raven: any, shouldSendCallback: () => boolean, userId: string) =
     tags: { git_commit: __GIT_REVISION__ },
     environment: __DEV__ ? 'development' : 'production',
     shouldSendCallback,
+    dataCallback: (data: mixed) => {
+      // We are mutating the data to anonymize everything.
+
+      if (typeof data !== 'object' || !data) return data
+
+      delete data.server_name // hides the user machine name
+      if (typeof data.request === 'object' && data.request) {
+        const { request } = data
+        if (typeof request.url === 'string') {
+          request.url = anonymizer.appURI(request.url)
+        }
+      }
+
+      if (data.breadcrumbs && typeof data.breadcrumbs === 'object') {
+        const { breadcrumbs } = data
+        if (Array.isArray(breadcrumbs.values)) {
+          const { values } = breadcrumbs
+          for (const b of values) {
+            if (!b || typeof b !== 'object') continue
+            if (b.category === 'xhr' && b.data && typeof b.data === 'object') {
+              const { data } = b
+              if (typeof data.url === 'string') {
+                data.url = anonymizer.url(data.url)
+              }
+            }
+          }
+        }
+      }
+
+      if (data.exception && typeof data.exception === 'object') {
+        const { exception } = data
+        if (Array.isArray(exception.values)) {
+          const { values } = exception
+          for (const value of values) {
+            if (value && typeof value === 'object') {
+              const { stacktrace } = value
+              if (stacktrace && typeof stacktrace === 'object') {
+                if (Array.isArray(stacktrace.frames)) {
+                  const { frames } = stacktrace
+                  for (const frame of frames) {
+                    if (frame && typeof frame === 'object' && typeof frame.filename === 'string') {
+                      frame.filename = anonymizer.filepath(frame.filename)
+                    }
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+
+      console.log('Sentry=>', data) // eslint-disable-line
+      return data
+    },
   })
   const user = {
     ip_address: null,