Merge pull request #948 from MetaMask/RecoverLostAccounts

Auto-Recover accounts lost to BIP44 derivation fix

14 files changed, 316 insertions, 191 deletions

diff --git a/app/scripts/keyring-controller.js b/app/scripts/keyring-controller.js
index 2888e58a9..4e9193ab2 100644
--- a/app/scripts/keyring-controller.js
+++ b/app/scripts/keyring-controller.js
@@ -9,7 +9,6 @@ const encryptor = require('browser-passworder')
 
 const normalize = require('./lib/sig-util').normalize
 const messageManager = require('./lib/message-manager')
-const IdStoreMigrator = require('./lib/idStore-migrator')
 const BN = ethUtil.BN
 
 // Keyrings:
@@ -45,11 +44,6 @@ module.exports = class KeyringController extends EventEmitter {
     this._unconfMsgCbs = {}
 
     this.getNetwork = opts.getNetwork
-
-    // TEMPORARY UNTIL FULL DEPRECATION:
-    this.idStoreMigrator = new IdStoreMigrator({
-      configManager: this.configManager,
-    })
   }
 
   // Set Store
@@ -114,7 +108,6 @@ module.exports = class KeyringController extends EventEmitter {
       conversionDate: this.configManager.getConversionDate(),
       keyringTypes: this.keyringTypes.map(krt => krt.type),
       identities: this.identities,
-      lostAccounts: this.configManager.getLostAccounts(),
     }
   }
 
@@ -222,10 +215,7 @@ module.exports = class KeyringController extends EventEmitter {
   // Temporarily also migrates any old-style vaults first, as well.
   // (Pre MetaMask 3.0.0)
   submitPassword (password) {
-    return this.migrateOldVaultIfAny(password)
-    .then(() => {
-      return this.unlockKeyrings(password)
-    })
+    return this.unlockKeyrings(password)
     .then((keyrings) => {
       this.keyrings = keyrings
       return this.fullUpdate()
@@ -611,41 +601,6 @@ module.exports = class KeyringController extends EventEmitter {
   // THESE METHODS ARE ONLY USED INTERNALLY TO THE KEYRING-CONTROLLER
   // AND SO MAY BE CHANGED MORE LIBERALLY THAN THE ABOVE METHODS.
 
-  // Migrate Old Vault If Any
-  // @string password
-  //
-  // returns Promise()
-  //
-  // Temporary step used when logging in.
-  // Checks if old style (pre-3.0.0) Metamask Vault exists.
-  // If so, persists that vault in the new vault format
-  // with the provided password, so the other unlock steps
-  // may be completed without interruption.
-  migrateOldVaultIfAny (password) {
-    const shouldMigrate = !!this.configManager.getWallet() && !this.configManager.getVault()
-    if (!shouldMigrate) {
-      return Promise.resolve()
-    }
-
-    return this.idStoreMigrator.migratedVaultForPassword(password)
-    .then((result) => {
-      this.password = password
-
-      if (result && shouldMigrate) {
-        const { serialized, lostAccounts } = result
-        this.configManager.setLostAccounts(lostAccounts)
-        return this.restoreKeyring(serialized)
-        .then(keyring => keyring.getAccounts())
-        .then((accounts) => {
-          this.configManager.setSelectedAccount(accounts[0])
-          return this.persistAllKeyrings()
-        })
-      } else {
-        return Promise.resolve()
-      }
-    })
-  }
-
   // Create First Key Tree
   // returns @Promise
   //
@@ -766,6 +721,10 @@ module.exports = class KeyringController extends EventEmitter {
   // initializing the persisted keyrings to RAM.
   unlockKeyrings (password) {
     const encryptedVault = this.configManager.getVault()
+    if (!encryptedVault) {
+      throw new Error('Cannot unlock without a previous vault.')
+    }
+
     return this.encryptor.decrypt(password, encryptedVault)
     .then((vault) => {
       this.password = password
diff --git a/app/scripts/lib/config-manager.js b/app/scripts/lib/config-manager.js
index d36ccf0db..ede877b76 100644
--- a/app/scripts/lib/config-manager.js
+++ b/app/scripts/lib/config-manager.js
@@ -121,7 +121,7 @@ ConfigManager.prototype.setVault = function (encryptedString) {
 
 ConfigManager.prototype.getVault = function () {
   var data = this.getData()
-  return ('vault' in data) && data.vault
+  return data.vault
 }
 
 ConfigManager.prototype.getKeychains = function () {
diff --git a/app/scripts/lib/idStore-migrator.js b/app/scripts/lib/idStore-migrator.js
index 2e9418376..655aed0af 100644
--- a/app/scripts/lib/idStore-migrator.js
+++ b/app/scripts/lib/idStore-migrator.js
@@ -63,7 +63,12 @@ module.exports = class IdentityStoreMigrator {
 
       return {
         serialized,
-        lostAccounts,
+        lostAccounts: lostAccounts.map((address) => {
+          return {
+            address,
+            privateKey: this.idStore.exportAccount(address),
+          }
+        }),
       }
     })
   }
diff --git a/app/scripts/lib/idStore.js b/app/scripts/lib/idStore.js
index cf4353e48..66e5d966c 100644
--- a/app/scripts/lib/idStore.js
+++ b/app/scripts/lib/idStore.js
@@ -202,7 +202,8 @@ IdentityStore.prototype.submitPassword = function (password, cb) {
 
 IdentityStore.prototype.exportAccount = function (address, cb) {
   var privateKey = this._idmgmt.exportPrivateKey(address)
-  cb(null, privateKey)
+  if (cb) cb(null, privateKey)
+  return privateKey
 }
 
 //
diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index 4b8fa4323..983a590d7 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -10,6 +10,7 @@ const ConfigManager = require('./lib/config-manager')
 const extension = require('./lib/extension')
 const autoFaucet = require('./lib/auto-faucet')
 const nodeify = require('./lib/nodeify')
+const IdStoreMigrator = require('./lib/idStore-migrator')
 
 
 module.exports = class MetamaskController {
@@ -44,6 +45,11 @@ module.exports = class MetamaskController {
     this.checkTOSChange()
 
     this.scheduleConversionInterval()
+
+    // TEMPORARY UNTIL FULL DEPRECATION:
+    this.idStoreMigrator = new IdStoreMigrator({
+      configManager: this.configManager,
+    })
   }
 
   getState () {
@@ -52,7 +58,9 @@ module.exports = class MetamaskController {
       this.ethStore.getState(),
       this.configManager.getConfig(),
       this.keyringController.getState(),
-      this.noticeController.getState()
+      this.noticeController.getState(), {
+        lostAccounts: this.configManager.getLostAccounts(),
+      }
     )
   }
 
@@ -71,6 +79,7 @@ module.exports = class MetamaskController {
       setTOSHash: this.setTOSHash.bind(this),
       checkTOSChange: this.checkTOSChange.bind(this),
       setGasMultiplier: this.setGasMultiplier.bind(this),
+      markAccountsFound: this.markAccountsFound.bind(this),
 
       // forward directly to keyringController
       createNewVaultAndKeychain: nodeify(keyringController.createNewVaultAndKeychain).bind(keyringController),
@@ -78,7 +87,12 @@ module.exports = class MetamaskController {
       placeSeedWords: nodeify(keyringController.placeSeedWords).bind(keyringController),
       clearSeedWordCache: nodeify(keyringController.clearSeedWordCache).bind(keyringController),
       setLocked: nodeify(keyringController.setLocked).bind(keyringController),
-      submitPassword: nodeify(keyringController.submitPassword).bind(keyringController),
+      submitPassword: (password, cb) => {
+        this.migrateOldVaultIfAny(password)
+        .then(keyringController.submitPassword.bind(keyringController))
+        .then((newState) => { cb(null, newState) })
+        .catch((reason) => { cb(reason) })
+      },
       addNewKeyring: nodeify(keyringController.addNewKeyring).bind(keyringController),
       addNewAccount: nodeify(keyringController.addNewAccount).bind(keyringController),
       setSelectedAccount: nodeify(keyringController.setSelectedAccount).bind(keyringController),
@@ -410,4 +424,66 @@ module.exports = class MetamaskController {
   getStateNetwork () {
     return this.state.network
   }
+
+  markAccountsFound(cb) {
+    this.configManager.setLostAccounts([])
+    this.sendUpdate()
+    cb(null, this.getState())
+  }
+
+  // Migrate Old Vault If Any
+  // @string password
+  //
+  // returns Promise()
+  //
+  // Temporary step used when logging in.
+  // Checks if old style (pre-3.0.0) Metamask Vault exists.
+  // If so, persists that vault in the new vault format
+  // with the provided password, so the other unlock steps
+  // may be completed without interruption.
+  migrateOldVaultIfAny (password) {
+
+    if (!this.checkIfShouldMigrate()) {
+      return Promise.resolve(password)
+    }
+
+    const keyringController = this.keyringController
+
+    return this.idStoreMigrator.migratedVaultForPassword(password)
+    .then(this.restoreOldVaultAccounts.bind(this))
+    .then(this.restoreOldLostAccounts.bind(this))
+    .then(keyringController.persistAllKeyrings.bind(keyringController))
+    .then(() => password)
+  }
+
+  checkIfShouldMigrate() {
+    return !!this.configManager.getWallet() && !this.configManager.getVault()
+  }
+
+  restoreOldVaultAccounts(migratorOutput) {
+    const { serialized } = migratorOutput
+    return this.keyringController.restoreKeyring(serialized)
+    .then(() => migratorOutput)
+  }
+
+  restoreOldLostAccounts(migratorOutput) {
+    const { lostAccounts } = migratorOutput
+    if (lostAccounts) {
+      this.configManager.setLostAccounts(lostAccounts.map(acct => acct.address))
+      return this.importLostAccounts(migratorOutput)
+    }
+    return Promise.resolve(migratorOutput)
+  }
+
+  // IMPORT LOST ACCOUNTS
+  // @Object with key lostAccounts: @Array accounts <{ address, privateKey }>
+  // Uses the array's private keys to create a new Simple Key Pair keychain
+  // and add it to the keyring controller.
+  importLostAccounts ({ lostAccounts }) {
+    const privKeys = lostAccounts.map(acct => acct.privateKey)
+    return this.keyringController.restoreKeyring({
+      type: 'Simple Key Pair',
+      data: privKeys,
+    })
+  }
 }
diff --git a/development/states/lost-accounts.json b/development/states/lost-accounts.json
new file mode 100644
index 000000000..9f1764c82
--- /dev/null
+++ b/development/states/lost-accounts.json
@@ -0,0 +1,91 @@
+{
+  "metamask": {
+    "currentFiat": "USD",
+    "lostAccounts": [
+      "0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc",
+      "0xec1adf982415d2ef5ec55899b9bfb8bc0f29251b"
+    ],
+    "conversionRate": 11.06608791,
+    "conversionDate": 1470421024,
+    "isInitialized": true,
+    "isUnlocked": true,
+    "currentDomain": "example.com",
+    "rpcTarget": "https://rawtestrpc.metamask.io/",
+    "identities": {
+      "0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc": {
+        "name": "Wallet 1",
+        "address": "0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc",
+        "mayBeFauceting": false
+      },
+      "0xec1adf982415d2ef5ec55899b9bfb8bc0f29251b": {
+        "name": "Wallet 2",
+        "address": "0xec1adf982415d2ef5ec55899b9bfb8bc0f29251b",
+        "mayBeFauceting": false
+      },
+      "0xeb9e64b93097bc15f01f13eae97015c57ab64823": {
+        "name": "Wallet 3",
+        "address": "0xeb9e64b93097bc15f01f13eae97015c57ab64823",
+        "mayBeFauceting": false
+      },
+      "0x704107d04affddd9b66ab9de3dd7b095852e9b69": {
+        "name": "Wallet 4",
+        "address": "0x704107d04affddd9b66ab9de3dd7b095852e9b69",
+        "mayBeFauceting": false
+      }
+    },
+    "unconfTxs": {},
+    "accounts": {
+      "0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc": {
+        "code": "0x",
+        "balance": "0x100000000000",
+        "nonce": "0x0",
+        "address": "0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc"
+      },
+      "0xec1adf982415d2ef5ec55899b9bfb8bc0f29251b": {
+        "code": "0x",
+        "nonce": "0x0",
+        "balance": "0x100000000000",
+        "address": "0xec1adf982415d2ef5ec55899b9bfb8bc0f29251b"
+      },
+      "0xeb9e64b93097bc15f01f13eae97015c57ab64823": {
+        "code": "0x",
+        "nonce": "0x0",
+        "balance": "0x100000000000",
+        "address": "0xeb9e64b93097bc15f01f13eae97015c57ab64823"
+      },
+      "0x704107d04affddd9b66ab9de3dd7b095852e9b69": {
+        "code": "0x",
+        "balance": "0x0",
+        "nonce": "0x0",
+        "address": "0x704107d04affddd9b66ab9de3dd7b095852e9b69"
+      }
+    },
+    "transactions": [],
+    "selectedAccount": "0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc",
+    "network": "2",
+    "seedWords": null,
+    "isDisclaimerConfirmed": true,
+    "unconfMsgs": {},
+    "messages": [],
+    "provider": {
+      "type": "testnet"
+    },
+    "selectedAccount": "0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc"
+  },
+  "appState": {
+    "menuOpen": false,
+    "currentView": {
+      "name": "accountDetail",
+      "detailView": null,
+      "context": "0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc"
+    },
+    "accountDetail": {
+      "subview": "transactions"
+    },
+    "currentDomain": "127.0.0.1:9966",
+    "transForward": true,
+    "isLoading": false,
+    "warning": null
+  },
+  "identities": {}
+}
diff --git a/test/integration/lib/first-time.js b/test/integration/lib/first-time.js
index 12c573db1..1811ccbd4 100644
--- a/test/integration/lib/first-time.js
+++ b/test/integration/lib/first-time.js
@@ -79,7 +79,7 @@ QUnit.test('agree to terms', function (assert) {
     var createButton = app.find('button.primary')[0]
     createButton.click()
 
-    return wait(1500)
+    return wait(1000)
   }).then(function() {
 
     var detail = app.find('.account-detail-section')[0]
diff --git a/test/integration/lib/idStore-migrator-test.js b/test/integration/lib/idStore-migrator-test.js
new file mode 100644
index 000000000..338896171
--- /dev/null
+++ b/test/integration/lib/idStore-migrator-test.js
@@ -0,0 +1,74 @@
+var KeyringController = require('../../../app/scripts/keyring-controller')
+var ConfigManager = require('../../../app/scripts/lib/config-manager')
+var IdStoreMigrator = require('../../../app/scripts/lib/idStore-migrator')
+
+var oldStyleVault = require('../mocks/oldVault.json')
+var badStyleVault = require('../mocks/badVault.json')
+
+var STORAGE_KEY = 'metamask-config'
+var PASSWORD = '12345678'
+var FIRST_ADDRESS = '0x4dd5d356c5A016A220bCD69e82e5AF680a430d00'.toLowerCase()
+var SEED = 'fringe damage bounce extend tunnel afraid alert sound all soldier all dinner'
+
+var BAD_STYLE_FIRST_ADDRESS = '0xac39b311dceb2a4b2f5d8461c1cdaf756f4f7ae9'
+
+QUnit.module('Old Style Vaults', {
+  beforeEach: function () {
+    window.localStorage[STORAGE_KEY] = JSON.stringify(oldStyleVault)
+
+    this.configManager = new ConfigManager({
+      loadData: () => { return JSON.parse(window.localStorage[STORAGE_KEY]) },
+      setData: (data) => { window.localStorage[STORAGE_KEY] = JSON.stringify(data) },
+    })
+
+    this.migrator = new IdStoreMigrator({
+      configManager: this.configManager,
+    })
+  }
+})
+
+QUnit.test('migrator:isInitialized', function (assert) {
+  assert.ok(this.migrator)
+})
+
+QUnit.test('migrator:migratedVaultForPassword', function (assert) {
+  var done = assert.async()
+
+  this.migrator.migratedVaultForPassword(PASSWORD)
+  .then((result) => {
+    const { serialized, lostAccounts } = result
+    assert.equal(serialized.data.mnemonic, SEED, 'seed phrase recovered')
+    assert.equal(lostAccounts.length, 0, 'no lost accounts')
+    done()
+  })
+})
+
+QUnit.module('Old Style Vaults with bad HD seed', {
+  beforeEach: function () {
+    window.localStorage[STORAGE_KEY] = JSON.stringify(badStyleVault)
+
+    this.configManager = new ConfigManager({
+      loadData: () => { return JSON.parse(window.localStorage[STORAGE_KEY]) },
+      setData: (data) => { window.localStorage[STORAGE_KEY] = JSON.stringify(data) },
+    })
+
+    this.migrator = new IdStoreMigrator({
+      configManager: this.configManager,
+    })
+  }
+})
+
+QUnit.test('migrator:migratedVaultForPassword', function (assert) {
+  var done = assert.async()
+
+  this.migrator.migratedVaultForPassword(PASSWORD)
+  .then((result) => {
+    const { serialized, lostAccounts } = result
+
+    assert.equal(lostAccounts.length, 1, 'one lost account')
+    assert.equal(lostAccounts[0].address, '0xe15D894BeCB0354c501AE69429B05143679F39e0'.toLowerCase())
+    assert.ok(lostAccounts[0].privateKey, 'private key exported')
+    done()
+  })
+})
+
diff --git a/test/integration/lib/keyring-controller-test.js b/test/integration/lib/keyring-controller-test.js
deleted file mode 100644
index 666795a6d..000000000
--- a/test/integration/lib/keyring-controller-test.js
+++ /dev/null
@@ -1,122 +0,0 @@
-var KeyringController = require('../../../app/scripts/keyring-controller')
-var ConfigManager = require('../../../app/scripts/lib/config-manager')
-
-var oldStyleVault = require('../mocks/oldVault.json')
-var badStyleVault = require('../mocks/badVault.json')
-
-var STORAGE_KEY = 'metamask-config'
-var PASSWORD = '12345678'
-var FIRST_ADDRESS = '0x4dd5d356c5A016A220bCD69e82e5AF680a430d00'.toLowerCase()
-
-var BAD_STYLE_FIRST_ADDRESS = '0xac39b311dceb2a4b2f5d8461c1cdaf756f4f7ae9'
-
-
-QUnit.module('Old Style Vaults', {
-  beforeEach: function () {
-    window.localStorage[STORAGE_KEY] = JSON.stringify(oldStyleVault)
-
-    this.configManager = new ConfigManager({
-      loadData: () => { return JSON.parse(window.localStorage[STORAGE_KEY]) },
-      setData: (data) => { window.localStorage[STORAGE_KEY] = JSON.stringify(data) },
-    })
-
-    this.keyringController = new KeyringController({
-      configManager: this.configManager,
-      getNetwork: () => { return '2' },
-    })
-
-    this.ethStore = {
-      addAccount: () => {},
-      removeAccount: () => {},
-    }
-
-    this.keyringController.setStore(this.ethStore)
-  }
-})
-
-QUnit.test('keyringController:isInitialized', function (assert) {
-  assert.ok(this.keyringController.getState().isInitialized)
-})
-
-QUnit.test('keyringController:submitPassword', function (assert) {
-  var done = assert.async()
-
-  this.keyringController.submitPassword(PASSWORD)
-  .then((state) => {
-    assert.ok(state.identities[FIRST_ADDRESS])
-    assert.equal(state.lostAccounts.length, 0, 'no lost accounts')
-    done()
-  })
-})
-
-QUnit.test('keyringController:setLocked', function (assert) {
-  var done = assert.async()
-  var self = this
-
-  this.keyringController.setLocked()
-  .then(function() {
-    assert.notOk(self.keyringController.password, 'password should be deallocated')
-    assert.deepEqual(self.keyringController.keyrings, [], 'keyrings should be deallocated')
-    done()
-  })
-  .catch((reason) => {
-    assert.ifError(reason)
-    done()
-  })
-})
-
-QUnit.module('Old Style Vaults with bad HD seed', {
-  beforeEach: function () {
-    window.localStorage[STORAGE_KEY] = JSON.stringify(badStyleVault)
-
-    this.configManager = new ConfigManager({
-      loadData: () => { return JSON.parse(window.localStorage[STORAGE_KEY]) },
-      setData: (data) => { window.localStorage[STORAGE_KEY] = JSON.stringify(data) },
-    })
-
-    this.keyringController = new KeyringController({
-      configManager: this.configManager,
-      getNetwork: () => { return '2' },
-    })
-
-    this.ethStore = {
-      addAccount: () => {},
-      removeAccount: () => {},
-    }
-
-    this.keyringController.setStore(this.ethStore)
-  }
-})
-
-QUnit.test('keyringController:isInitialized', function (assert) {
-  assert.ok(this.keyringController.getState().isInitialized, 'vault is initialized')
-})
-
-QUnit.test('keyringController:submitPassword', function (assert) {
-  var done = assert.async()
-
-  this.keyringController.submitPassword(PASSWORD)
-  .then((state) => {
-    assert.ok(state.identities[BAD_STYLE_FIRST_ADDRESS])
-    assert.equal(state.lostAccounts.length, 1, 'one lost account')
-    assert.equal(state.lostAccounts[0], '0xe15D894BeCB0354c501AE69429B05143679F39e0'.toLowerCase())
-    assert.deepEqual(this.configManager.getLostAccounts(), state.lostAccounts, 'persisted')
-    done()
-  })
-})
-
-QUnit.test('keyringController:setLocked', function (assert) {
-  var done = assert.async()
-  var self = this
-
-  this.keyringController.setLocked()
-  .then(function() {
-    assert.notOk(self.keyringController.password, 'password should be deallocated')
-    assert.deepEqual(self.keyringController.keyrings, [], 'keyrings should be deallocated')
-    done()
-  })
-  .catch((reason) => {
-    assert.ifError(reason)
-    done()
-  })
-})
diff --git a/test/unit/idStore-migration-test.js b/test/unit/idStore-migration-test.js
index 66dd4683d..8532ac914 100644
--- a/test/unit/idStore-migration-test.js
+++ b/test/unit/idStore-migration-test.js
@@ -83,7 +83,7 @@ describe('IdentityStore to KeyringController migration', function() {
       keyringController.configManager.setWallet('something')
       const state = keyringController.getState()
       assert(state.isInitialized, 'old vault counted as initialized.')
-      assert.equal(state.lostAccounts.length, 0, 'no lost accounts')
+      assert(!state.lostAccounts, 'no lost accounts')
     })
   })
 })
diff --git a/ui/app/actions.js b/ui/app/actions.js
index 1c32c9bb1..606460314 100644
--- a/ui/app/actions.js
+++ b/ui/app/actions.js
@@ -20,6 +20,7 @@ var actions = {
   showNotice: showNotice,
   CLEAR_NOTICES: 'CLEAR_NOTICES',
   clearNotices: clearNotices,
+  markAccountsFound,
   // intialize screen
   AGREE_TO_DISCLAIMER: 'AGREE_TO_DISCLAIMER',
   agreeToDisclaimer: agreeToDisclaimer,
@@ -591,6 +592,17 @@ function clearNotices () {
   }
 }
 
+function markAccountsFound() {
+  return (dispatch) => {
+    dispatch(this.showLoadingIndication())
+    background.markAccountsFound((err, newState) => {
+      dispatch(this.hideLoadingIndication())
+      if (err) return dispatch(this.showWarning(err.message))
+      dispatch(actions.updateMetamaskState(newState))
+    })
+  }
+}
+
 //
 // config
 //
diff --git a/ui/app/app.js b/ui/app/app.js
index 2fa6415dd..6da0c3b1d 100644
--- a/ui/app/app.js
+++ b/ui/app/app.js
@@ -16,7 +16,8 @@ const AccountDetailScreen = require('./account-detail')
 const SendTransactionScreen = require('./send')
 const ConfirmTxScreen = require('./conf-tx')
 // notice
-const NoticeScreen = require('./notice')
+const NoticeScreen = require('./components/notice')
+const generateLostAccountsNotice = require('../lib/lost-accounts-notice')
 // other views
 const ConfigScreen = require('./config')
 const InfoScreen = require('./info')
@@ -55,6 +56,8 @@ function mapStateToProps (state) {
     network: state.metamask.network,
     provider: state.metamask.provider,
     forgottenPassword: state.appState.forgottenPassword,
+    lastUnreadNotice: state.metamask.lastUnreadNotice,
+    lostAccounts: state.metamask.lostAccounts,
   }
 }
 
@@ -366,8 +369,19 @@ App.prototype.renderPrimary = function () {
     }
   }
 
+  // notices
   if (!props.noActiveNotices) {
-    return h(NoticeScreen, {key: 'NoticeScreen'})
+    return h(NoticeScreen, {
+      notice: props.lastUnreadNotice,
+      key: 'NoticeScreen',
+      onConfirm: () => props.dispatch(actions.markNoticeRead(props.lastUnreadNotice)),
+    })
+  } else if (props.lostAccounts && props.lostAccounts.length > 0) {
+    return h(NoticeScreen, {
+      notice: generateLostAccountsNotice(props.lostAccounts),
+      key: 'LostAccountsNotice',
+      onConfirm: () => props.dispatch(actions.markAccountsFound()),
+    })
   }
 
   // show current view
diff --git a/ui/app/notice.js b/ui/app/components/notice.js
index 3c2c746f2..00db734d7 100644
--- a/ui/app/notice.js
+++ b/ui/app/components/notice.js
@@ -2,18 +2,10 @@ const inherits = require('util').inherits
 const Component = require('react').Component
 const h = require('react-hyperscript')
 const ReactMarkdown = require('react-markdown')
-const connect = require('react-redux').connect
-const actions = require('./actions')
 const linker = require('extension-link-enabler')
 const findDOMNode = require('react-dom').findDOMNode
 
-module.exports = connect(mapStateToProps)(Notice)
-
-function mapStateToProps (state) {
-  return {
-    lastUnreadNotice: state.metamask.lastUnreadNotice,
-  }
-}
+module.exports = Notice
 
 inherits(Notice, Component)
 function Notice () {
@@ -21,9 +13,8 @@ function Notice () {
 }
 
 Notice.prototype.render = function () {
-  const props = this.props
-  const title = props.lastUnreadNotice.title
-  const date = props.lastUnreadNotice.date
+  const { notice, onConfirm } = this.props
+  const { title, date, body } = notice
 
   return (
     h('.flex-column.flex-center.flex-grow', [
@@ -59,6 +50,7 @@ Notice.prototype.render = function () {
         .markdown {
           overflow-x: hidden;
         }
+
         .markdown h1, .markdown h2, .markdown h3 {
           margin: 10px 0;
           font-weight: bold;
@@ -92,13 +84,13 @@ Notice.prototype.render = function () {
         },
       }, [
         h(ReactMarkdown, {
-          source: props.lastUnreadNotice.body,
+          source: body,
           skipHtml: true,
         }),
       ]),
 
       h('button', {
-        onClick: () => props.dispatch(actions.markNoticeRead(props.lastUnreadNotice)),
+        onClick: onConfirm,
         style: {
           marginTop: '18px',
         },
diff --git a/ui/lib/lost-accounts-notice.js b/ui/lib/lost-accounts-notice.js
new file mode 100644
index 000000000..948b13db6
--- /dev/null
+++ b/ui/lib/lost-accounts-notice.js
@@ -0,0 +1,23 @@
+const summary = require('../app/util').addressSummary
+
+module.exports = function (lostAccounts) {
+  return {
+    date: new Date().toDateString(),
+    title: 'Account Problem Caught',
+    body: `MetaMask has fixed a bug where some accounts were previously mis-generated. This was a rare issue, but you were affected!
+
+We have successfully imported the accounts that were mis-generated, but they will no longer be recovered with your normal seed phrase.
+
+We have marked the affected accounts as "Loose", and recommend you transfer ether and tokens away from those accounts, or export & back them up elsewhere.
+
+Your affected accounts are:
+${lostAccounts.map(acct => ` - ${summary(acct)}`).join('\n')}
+
+These accounts have been marked as "Loose" so they will be easy to recognize in the account list.
+
+For more information, please read [our blog post.][1]
+
+[1]: https://medium.com/metamask/metamask-3-migration-guide-914b79533cdd#.7d8ktj4h3
+    `,
+  }
+}