Telstar House, Mead Avenue, Houndstone Business Park, Yeovil, Somerset, BA22 8RT


Two-factor authentication secures your personal data with an additional layer of security

Two-factor authentication (2FA) helps protect you online by making it more difficult for someone else to sign in to your account with a username and password alone. 2FA uses two different forms of identity: your password and a method of contact. After you have entered your password, an authentication code will be sent to your preferred contact method, creating an additional layer of security.

CETSAT will set you up with two-factor authentication using your phone number or the Microsoft Authenticator app. With two-factor authentication enabled, you’ll be prompted for an authentication code every time you sign in on a device that you have not trusted or is not recognised. The authentication code refreshes every 60 seconds and as malicious users will not have access to your mobile phone, they will be unable to access your account without the correct code.

To better help us to configure 2FA on your Microsoft account, please download and install the applications below on your smart phone or tablet before your telephone appointment with CETSAT. Please also ensure you have your phone and all other devices you use to access your Office 365 email to hand for your telephone appointment.

Outlook for Smartphone

Used for emails, contacts and calendars

Download from the Apple App Store
Download from Google Play
Microsoft Authenticator

Used to create a one-time code or click to authenticate to access your emails from an unknown device

Download from the Apple App Store
Download from Google Play

If we need to access your machine during your personal setup appointment, please simply visit in your Web Browser and we will be able to connect up remotely