Many UK small businesses and SMEs rely on mobile devices to access email while on the move or working remotely. Microsoft 365 offers built-in tools that help ensure this access is both convenient and secure, reducing the risk of unauthorised access or data breaches. This means your staff can check and send emails safely from smartphones or tablets without exposing sensitive business information.
Why secure mobile email matters for your business
Email often contains confidential client details, contracts, and payment information. If mobile email access isn't properly secured, a lost or stolen device could become an entry point for cybercriminals. This can lead to data loss, reputational damage, and potential fines under UK GDPR and the Data Protection Act 2018. Additionally, unsecured email access can increase downtime if accounts are compromised, disrupting your team's productivity and customer service.
A typical scenario for UK SMEs
Imagine a London-based consultancy with 50 employees. Several consultants regularly access their Microsoft 365 email on personal smartphones. Without proper controls, a lost phone could allow someone to read sensitive emails or send fraudulent messages pretending to be the consultant. By working with a managed IT provider to implement Microsoft 365's mobile security features, the business enforces multi-factor authentication (MFA), device encryption, and conditional access policies. This means only authorised, compliant devices can connect, and if a device is lost, the IT team can remotely wipe business data. The result is reduced risk of data exposure and compliance with Cyber Essentials recommendations.
Practical checklist: securing Microsoft 365 email on mobile devices
- Ask your IT provider: How do you enforce multi-factor authentication (MFA) for mobile email access?
- Check conditional access policies: Are there restrictions based on device compliance, location, or app security?
- Review device management: Is Microsoft Intune or a similar mobile device management (MDM) solution used to control and wipe devices remotely?
- Verify encryption: Are emails and attachments encrypted both in transit and at rest on mobile devices?
- Audit access logs: Can you regularly review who accessed email and from which devices?
- Test incident response: Does your provider have a clear process to quickly disable accounts or wipe data if a device is lost or stolen?
- Confirm compliance support: Do your security settings align with UK standards like Cyber Essentials, ICO guidance, and ISO 27001 where relevant?
By addressing these points, you can significantly reduce the risk of email-related security incidents on mobile devices and maintain business continuity.
For tailored advice and implementation support, consider consulting a trusted managed IT provider familiar with UK SME requirements. They can help configure Microsoft 365's security features to fit your business needs and ensure ongoing monitoring and compliance without adding complexity for your team.