diff --git a/src/api/auth.ts b/src/api/auth.ts
index 829a4a0..17a081b 100644
--- a/src/api/auth.ts
+++ b/src/api/auth.ts
@@ -13,3 +13,11 @@ export const login = (login: string, password: string, recaptcha: string) => pos
     recaptcha
 });
 export const userLogout = () => post<string>('auth/logout');
+export const changeEmail = (old_email: string, new_email: string) => post<string>('auth/changeEmail', {
+    old_email,
+    new_email
+});
+export const changePassword = (old_password: string, new_password: string) => post<string>('auth/changePassword', {
+    old_password,
+    new_password
+});
diff --git a/src/api/errors.ts b/src/api/errors.ts
index 6b65fcc..c1ff2aa 100644
--- a/src/api/errors.ts
+++ b/src/api/errors.ts
@@ -6,7 +6,9 @@ const errors: { [key: number]: string } = {
     6: 'Токен истек!',
     8: 'Новый и старый пароли совпадают!',
     9: 'Необходима проверка ReCaptcha',
+    10: 'Неверно указан старый E-Mail',
+    11: 'Неверно указан старый пароль',
     100: 'Не найдено!'
 };
 
-export default errors;
\ No newline at end of file
+export default errors;
diff --git a/src/pages/App/App.sass b/src/pages/App/App.sass
index aae8d2e..b5145ca 100644
--- a/src/pages/App/App.sass
+++ b/src/pages/App/App.sass
@@ -85,11 +85,6 @@ a
   margin: .5rem auto
 
   .Notifications
-    position: fixed
-    bottom: 0
-    left: 0
-    z-index: 100000
-
     @media (min-width: 500px)
       padding: 1rem
       box-sizing: border-box
diff --git a/src/pages/App/App.tsx b/src/pages/App/App.tsx
index b05538f..5a61abc 100644
--- a/src/pages/App/App.tsx
+++ b/src/pages/App/App.tsx
@@ -43,11 +43,17 @@ class App extends React.Component<Props, State> {
     constructor(props: Props) {
         super(props);
 
+        parser.registerTag('spoiler', SpoilerTag);
+        parser.registerTag('color', ColorTag);
+    }
+
+    componentDidMount() {
+        const { setUser, setSettings } = this.props;
+
         const cachedTheme = localStorage.getItem('theme');
         if(cachedTheme)
             document.body.setAttribute('theme', cachedTheme);
 
-        const { setUser, setSettings } = props;
         fetchCurrentUser().then(user => {
             setUser(user);
             fetchUserSettings().then(settings => {
@@ -62,9 +68,6 @@ class App extends React.Component<Props, State> {
                 console.error(err.text);
         });
 
-        parser.registerTag('spoiler', SpoilerTag);
-        parser.registerTag('color', ColorTag);
-
         getVersion().then(res => {
             if(version !== res.version) {
                 console.debug(`Current back-end version: ${res.version}. Clearing cache`);
@@ -80,13 +83,12 @@ class App extends React.Component<Props, State> {
 
     render() {
         const { modal } = this.props;
-        const notificationWidth = window.screen.width >= 500 ? 500 : window.screen.width;
 
         return (
             <>
                 <Navbar/>
                 <div className={'Container'}>
-                    <div className="Notifications" style={{ width: notificationWidth }}>
+                    <div className="Notifications">
                         {this.props.notifications.map((n, i) => (
                             <React.Fragment key={i}>
                                 {n}
diff --git a/src/pages/User/Settings/Security.tsx b/src/pages/User/Settings/Security.tsx
index a28367d..4b3e40b 100644
--- a/src/pages/User/Settings/Security.tsx
+++ b/src/pages/User/Settings/Security.tsx
@@ -2,23 +2,40 @@ import React from "react";
 import Group from "../../../ui/Group/Group";
 import Input from "../../../ui/Input/Input";
 import Button from "../../../ui/Button/Button";
+import { changeEmail, changePassword } from "../../../api/auth";
+import { connect } from "react-redux";
+import { addNotification } from "../../../store/ducks/notifications";
+import NotificationMessage from "../../../ui/Notifications/NotificationMessage";
+import errors from "../../../api/errors";
+
+type Props = {
+    addNotification: AddNotification
+}
 
 type State = {
     oldEmail: string
     email1: string
     email2: string
-    error: string
+    emailError: string
+
+    oldPassword: string
+    password1: string
+    password2: string
+    passwordError: string
 }
 
-class Security extends React.Component<{}, State> {
+class Security extends React.Component<Props, State> {
     state: State = {
         oldEmail: '', email1: '', email2: '',
-        error: ''
+        oldPassword: '', password1: '', password2: '',
+        emailError: '', passwordError: ''
     }
 
     changeEmail = (e: React.FormEvent) => {
         e.preventDefault();
         const { oldEmail, email1, email2 } = this.state;
+        const { addNotification } = this.props;
+
         let error = '';
         if(!oldEmail) error += 'Введите старый E-mail\n';
         if(!email1) error += 'Введите новый E-mail\n';
@@ -27,17 +44,64 @@ class Security extends React.Component<{}, State> {
         if(oldEmail === email1) error += 'Старый и новый E-mail не должны совпадать';
 
         if(error) {
-            this.setState({ error });
-            return;
+            this.setState({ emailError: error });
+        } else {
+            changeEmail(oldEmail, email1).then(() => {
+                addNotification(
+                    <NotificationMessage>
+                        E-mail успешно сменен!
+                    </NotificationMessage>
+                );
+                this.setState({
+                    oldEmail: '', email1: '', email2: ''
+                });
+            }).catch((err: ApiError) => {
+                this.setState({ emailError: errors[err.code] })
+            });
+        }
+    }
+
+    changePassword = (e: React.FormEvent) => {
+        e.preventDefault();
+
+        const { oldPassword, password1, password2 } = this.state;
+        const { addNotification } = this.props;
+
+        let error = '';
+        if(!oldPassword) error += 'Введите старый пароль\n';
+        if(!password1) error += 'Введите новый пароль\n';
+        if(!password2) error += 'Введите повтор нового пароля\n';
+        if(password1 !== password2) error += 'Пароли не совпадают\n';
+        if(oldPassword === password1) error += 'Старый и новый пароль не должны совпадать';
+
+        if(error) {
+            this.setState({ passwordError: error });
+        } else {
+            changePassword(oldPassword, password1).then(() => {
+                addNotification(
+                    <NotificationMessage>
+                        Пароль успешно сменен!
+                    </NotificationMessage>
+                );
+                this.setState({
+                    oldPassword: '', password1: '', password2: ''
+                });
+            }).catch((err: ApiError) => {
+                this.setState({ passwordError: errors[err.code] })
+            });
         }
     }
 
     render() {
-        const { oldEmail, email1, email2, error } = this.state;
+        const {
+            oldEmail, email1, email2,
+            oldPassword, password1, password2,
+            emailError, passwordError
+        } = this.state;
 
-        return (
+        return (<>
             <Group title={'Смена E-mail'} className={'Settings_Group'}>
-                {error && <pre className={'Error'}>{error}</pre>}
+                {emailError && <pre className={'Error'}>{emailError}</pre>}
                 <form onSubmit={this.changeEmail}>
                     <Input
                         placeholder={'Старый E-mail'}
@@ -60,8 +124,38 @@ class Security extends React.Component<{}, State> {
                     <Button>Сохранить</Button>
                 </form>
             </Group>
-        );
+
+            <Group title={'Смена пароля'} className={'Settings_Group'}>
+                {passwordError && <pre className={'Error'}>{passwordError}</pre>}
+                <form onSubmit={this.changePassword}>
+                    <Input
+                        placeholder={'Старый пароль'}
+                        type={'password'}
+                        value={oldPassword}
+                        onChange={e => this.setState({ oldPassword: e.target.value })}
+                    />
+                    <Input
+                        placeholder={'Новый пароль'}
+                        type={'password'}
+                        value={password1}
+                        onChange={e => this.setState({ password1: e.target.value })}
+                    />
+                    <Input
+                        placeholder={'Новый пароль ещё раз'}
+                        type={'password'}
+                        value={password2}
+                        onChange={e => this.setState({ password2: e.target.value })}
+                    />
+                    <Button>Сохранить</Button>
+                </form>
+            </Group>
+        </>);
     }
 }
 
-export default Security;
+export default connect(
+    null,
+    dispatch => ({
+        addNotification: (notification: React.ReactNode) => dispatch(addNotification(notification))
+    })
+)(Security);
diff --git a/src/ui/Notifications/NotificationMessage.sass b/src/ui/Notifications/NotificationMessage.sass
index 24444c6..6e06ab6 100644
--- a/src/ui/Notifications/NotificationMessage.sass
+++ b/src/ui/Notifications/NotificationMessage.sass
@@ -1,17 +1,20 @@
-@import "../../Constants"
-
-.Animate-Notification-exit
-  opacity: 0
-
 .Notification
   background-color: var(--block-color)
   border: 1px solid var(--link-color)
+  border-radius: 5px
   padding: .5rem
   box-sizing: border-box
-  max-width: 500px
-  width: 500px
+  min-width: 288px
   cursor: pointer
-  margin-top: 1rem
+  margin: 1rem
+  position: fixed
+  z-index: 100000
+
+  @media (max-width: 500px)
+    width: 100%
+
+  @media (min-width: 501px)
+    width: 500px
 
   &--Error
     background: var(--error-bg-color)
@@ -24,4 +27,4 @@
 
   .Progress
     height: 5px
-    background: white
\ No newline at end of file
+    background: white
diff --git a/src/ui/Notifications/NotificationMessage.tsx b/src/ui/Notifications/NotificationMessage.tsx
index d0053e1..7b40311 100644
--- a/src/ui/Notifications/NotificationMessage.tsx
+++ b/src/ui/Notifications/NotificationMessage.tsx
@@ -5,7 +5,9 @@ import { capitalize } from "../../utils";
 type Props = {
     children: React.ReactNode
     level?: 'info' | 'success' | 'error'
-}
+    hideTime?: number
+    position?: 'left' | 'bottom' | 'right'
+} & React.DetailedHTMLProps<React.AllHTMLAttributes<HTMLDivElement>, HTMLDivElement>
 
 type State = {
     time: number
@@ -16,7 +18,7 @@ class NotificationMessage extends React.Component<Props, State> {
     timer: NodeJS.Timeout | undefined;
 
     state = {
-        time: 5000, paused: false
+        time: this.props.hideTime || 5000, paused: false
     };
 
     onMouseOver = () => {
@@ -28,32 +30,60 @@ class NotificationMessage extends React.Component<Props, State> {
     };
 
     onClick = () => {
-        this.timer = setInterval(() => this.interval(80), 1);
+        this.timer = setInterval(() => {
+            this.interval(80);
+        }, 1);
         this.setState({ paused: false });
     };
 
     interval = (step = 50) => {
         const { time, paused } = this.state;
-        if(time <= 0 && this.timer) clearInterval(this.timer);
-        if(!paused) this.setState({ time: time - step });
+
+        if(time <= 0 && this.timer)
+            clearInterval(this.timer);
+        if(!paused)
+            this.setState({ time: time - step });
     };
 
     componentDidMount(): void {
-        this.timer = setInterval(() => this.interval(10), 1)
+        this.timer = setInterval(() => {
+            this.interval(10);
+        }, 10);
     };
 
     componentWillUnmount(): void {
-        if(this.timer) clearTimeout(this.timer);
+        if(this.timer)
+            clearTimeout(this.timer);
     }
 
     render() {
         const { time } = this.state;
-        const { children, level } = this.props;
+        const {
+            children,
+            level,
+            hideTime,
+            position,
+            ...props
+        } = this.props;
+
         if(time <= 0)
             return null;
 
         const styleClass = level ? `Notification--${capitalize(level)}` : '';
-        const width = window.screen.width >= 500 ? 500 : window.screen.width;
+
+        let style = {};
+        switch(position) {
+            default:
+            case "left":
+                Object.assign(style, { bottom: 0, left: 0 });
+                break;
+            case "bottom":
+                Object.assign(style, { bottom: 0, left: '50%', transform: 'translateX(-50%)' });
+                break;
+            case "right":
+                Object.assign(style, { bottom: 0, right: 0 });
+                break;
+        }
 
         return (
             <div
@@ -61,10 +91,11 @@ class NotificationMessage extends React.Component<Props, State> {
                 onMouseOver={this.onMouseOver}
                 onMouseOut={this.onMouseOut}
                 onClick={this.onClick}
-                style={{ width }}
+                style={style}
+                {...props}
             >
                 {children}
-                <div className="Progress" style={{ width: `${time / 5000 * 100}%` }}/>
+                <div className="Progress" style={{ width: `${time / (5000 || hideTime) * 100}%` }}/>
             </div>
         );
     }