diff --git a/package-lock.json b/package-lock.json
index ad1d694..39420b6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "web-ext",
-  "version": "2.3.2",
+  "version": "2.3.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index f0f1db8..e733378 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "web-ext",
-  "version": "2.3.2",
+  "version": "2.3.3",
   "description": "Adds Blockstack support to a web broswer.",
   "main": "blockstack-background.js",
   "private": true,
diff --git a/src/common/components/bs-login/bs-login.ts b/src/common/components/bs-login/bs-login.ts
index 6993af3..f66cab0 100644
--- a/src/common/components/bs-login/bs-login.ts
+++ b/src/common/components/bs-login/bs-login.ts
@@ -7,7 +7,7 @@ import * as bip32 from 'bip32';
 import { BIP32Interface } from 'bip32';
 import { randomBytes } from 'crypto';
 import { dispatch, commit } from '../../vuex/remote-interface';
-import { encrypt } from '../../util';
+import { encrypt, createIv } from '../../util';
 import { FieldFlags } from 'vee-validate';
 import { StateType } from '../../vuex/stores/types/state';
 
@@ -85,10 +85,11 @@ export default (Vue as VVue).component('bs-login', {
       } else {
         throw new Error('Tried to initialize a wallet with a bad phrase');
       }
-      return encrypt(this.phrase, this.pass).then(encryptedBackupPhrase => {
+      const iv = await createIv();
+      return encrypt(this.phrase, this.pass, iv).then(encryptedBackupPhrase => {
         console.log('Creating account w/ enc phrase: "' + encryptedBackupPhrase + '"!');
         return dispatch('account/createAccount',
-              { email: this.email, encryptedBackupPhrase, masterKeychain: masterKeychain.toBase58() });
+              { email: this.email, encryptedBackupPhrase, iv, masterKeychain: masterKeychain.toBase58() });
       });
     },
     async initializeIdentity(autoGenProfile?: boolean) {
diff --git a/src/common/util.ts b/src/common/util.ts
index 741d320..c797197 100644
--- a/src/common/util.ts
+++ b/src/common/util.ts
@@ -1,6 +1,6 @@
 import { payments, ECPair } from 'bitcoinjs-lib';
 import { BIP32Interface } from 'bip32';
-import { createCipher, createDecipher, randomBytes } from 'crypto';
+import { randomBytes, createDecipheriv, createCipheriv, createHash } from 'crypto';
 import { StateType } from './vuex/stores/types/state';
 import { TokenSigner } from 'jsontokens';
 import { connectToGaiaHub, uploadToGaiaHub } from 'blockstack';
@@ -11,15 +11,21 @@ export function getAddress(node: BIP32Interface, network?: any) {
   return payments.p2pkh({ pubkey: node.publicKey }).address;
 }
 
-export async function encrypt(data: string, key: string): Promise<string> {
-  const cipher = createCipher('aes192', key);
+export async function createIv() {
+  return createHash('sha256').update(randomBytes(16)).digest('hex').slice(0, 16);
+}
+
+export async function encrypt(data: string, key: string, iv: string): Promise<string> {
+  const k = createHash('sha256').update(key).digest();
+  const cipher = createCipheriv('aes256', k, iv);
   let enc = cipher.update(data, 'utf8', 'hex');
   enc += cipher.final('hex');
   return enc;
 }
 
-export async function decrypt(data: string, key: string): Promise<string> {
-  const decipher = createDecipher('aes192', key);
+export async function decrypt(data: string, key: string, iv: string): Promise<string> {
+  const k = createHash('sha256').update(key).digest();
+  const decipher = createDecipheriv('aes256', k, iv);
   let dec = decipher.update(data, 'hex', 'utf8');
   dec += decipher.final('utf8');
   return dec;
diff --git a/src/common/vuex/stores/account.store.ts b/src/common/vuex/stores/account.store.ts
index be18767..54e7f82 100644
--- a/src/common/vuex/stores/account.store.ts
+++ b/src/common/vuex/stores/account.store.ts
@@ -2,7 +2,7 @@ import { Module } from 'vuex';
 import { WrappedKeychain } from '../../data/wrapped-keychain';
 import { AccountStateType, SATOSHIS_IN_BTC } from './types/account.state';
 import { StateType } from './types/state';
-import { decrypt, encrypt } from '../../util';
+import { decrypt, encrypt, createIv } from '../../util';
 import { validateMnemonic, mnemonicToSeed } from 'bip39';
 import Axios, { AxiosPromise, AxiosResponse } from 'axios';
 import { config, transactions, network } from 'blockstack';
@@ -13,6 +13,7 @@ function makeState(): AccountStateType {
     accountCreated: false,
     email: '',
     encryptedBackupPhrase: '',
+    iv: null,
     bitcoinAccount: {
       publicKeychain: '',
       addresses: [] as string[],
@@ -51,9 +52,10 @@ export const accountModule: Module<AccountStateType, StateType> = {
     async reset({ commit }) {
       commit('reset');
     },
-    async createAccount({ commit, state }, { email, encryptedBackupPhrase, masterKeychain, identitiesToGenerate }: {
+    async createAccount({ commit, state }, { email, encryptedBackupPhrase, iv, masterKeychain, identitiesToGenerate }: {
       email?: string,
       encryptedBackupPhrase: string,
+      iv: string,
       masterKeychain: string,
       identitiesToGenerate?: number
     }) {
@@ -72,6 +74,7 @@ export const accountModule: Module<AccountStateType, StateType> = {
         email: email || state.email,
         accountCreated: true,
         encryptedBackupPhrase,
+        iv,
         bitcoinAccount: {
           publicKeychain: wrapped.bitcoinPublicKeychain.toBase58(),
           addresses: [firstBitcoinAddress],
@@ -81,10 +84,11 @@ export const accountModule: Module<AccountStateType, StateType> = {
       } as Partial<AccountStateType>);
     },
     async changePassword({ state, commit }, { newpass, oldpass }: { newpass: string, oldpass: string }) {
-      const phrase = await decrypt(state.encryptedBackupPhrase, oldpass);
+      const phrase = await decrypt(state.encryptedBackupPhrase, oldpass, state.iv);
       if(!validateMnemonic(phrase)) throw new Error('Wrong password!');
-      const encryptedBackupPhrase = await encrypt(phrase, newpass);
-      commit('update', { encryptedBackupPhrase });
+      const iv = await createIv();
+      const encryptedBackupPhrase = await encrypt(phrase, newpass, iv);
+      commit('update', { iv, encryptedBackupPhrase });
     },
     async refreshBalances({ state, commit, rootState }) {
       const balances: { [key: string]: number } = { };
@@ -105,7 +109,7 @@ export const accountModule: Module<AccountStateType, StateType> = {
     },
     async withdraw({ state, dispatch }, { to, amount, password }: { to: string, amount: number, password: string }) {
       if(amount > state.bitcoinAccount.balances[0]) throw new Error('Will not overwithdraw from the account.')
-      const phrase = await decrypt(state.encryptedBackupPhrase, password);
+      const phrase = await decrypt(state.encryptedBackupPhrase, password, state.iv);
       if(!validateMnemonic(phrase)) throw new Error('Wrong password!');
       const seedBuffer = mnemonicToSeed(phrase);
       const masterKeychain = WrappedNode.fromSeed(seedBuffer);
diff --git a/src/common/vuex/stores/identity.store.ts b/src/common/vuex/stores/identity.store.ts
index 197d8f6..4130991 100644
--- a/src/common/vuex/stores/identity.store.ts
+++ b/src/common/vuex/stores/identity.store.ts
@@ -183,7 +183,7 @@ export const identityModule: Module<IdentityStateType, StateType> = {
       commit('reset');
     },
     async create({ commit, state, rootState }, { password, index }: { password: string, index?: number }) {
-      const phrase = await decrypt(rootState.account.encryptedBackupPhrase, password);
+      const phrase = await decrypt(rootState.account.encryptedBackupPhrase, password, rootState.account.iv);
       if(!validateMnemonic(phrase)) throw new Error('Wrong password!');
       if(!index) {
         if(!state.identities.length) index = 0;
diff --git a/src/common/vuex/stores/types/account.state.ts b/src/common/vuex/stores/types/account.state.ts
index fb4117c..63b0305 100644
--- a/src/common/vuex/stores/types/account.state.ts
+++ b/src/common/vuex/stores/types/account.state.ts
@@ -4,6 +4,7 @@ export interface AccountStateType {
   accountCreated: boolean;
   email: string; // dumb =T
   encryptedBackupPhrase: string;
+  iv: string;
   bitcoinAccount: {
     publicKeychain: string;
     addresses: string[];
diff --git a/src/main/app/app.ts b/src/main/app/app.ts
index 42d53c5..64cb6bc 100644
--- a/src/main/app/app.ts
+++ b/src/main/app/app.ts
@@ -100,7 +100,7 @@ export default (Vue as VVue).extend({
           type: 'password'
         },
         onConfirm: (value) => {
-          decrypt(this.$store.state.account.encryptedBackupPhrase, value).then(phrase => {
+          decrypt(this.$store.state.account.encryptedBackupPhrase, value, this.$store.state.account.iv).then(phrase => {
             this.$dialog.alert({
               title: 'Backup Phrase',
               message: `<div class='content'>
diff --git a/src/manifest.json b/src/manifest.json
index 87f7bbc..4456858 100644
--- a/src/manifest.json
+++ b/src/manifest.json
@@ -2,7 +2,7 @@
   "manifest_version": 2,
   "name": "(Unofficial) Blockstack Extension",
   "short_name": "uBlockstack",
-  "version": "2.3.2",
+  "version": "2.3.3",
   "author": "Michael Fedora",
   "homepage_url": "https://github.com/michaelfedora/unofficial-blockstack-extension",
 
diff --git a/src/popup/app/components/settings.ts b/src/popup/app/components/settings.ts
index 2c329fb..355f52d 100644
--- a/src/popup/app/components/settings.ts
+++ b/src/popup/app/components/settings.ts
@@ -161,7 +161,7 @@ export default (Vue as VVue).component('bs-popup-settings', {
           type: 'password'
         },
         onConfirm: (value) => {
-          decrypt(this.$store.state.account.encryptedBackupPhrase, value).then(phrase => {
+          decrypt(this.$store.state.account.encryptedBackupPhrase, value, this.$store.state.account.iv).then(phrase => {
             this.$dialog.alert({
               title: 'Backup Phrase',
               message: `<div class='content'>