Report by Exclaimer

The UK Business Email Report 2025

29 FINDINGSPublished Sep 30, 2025
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Key Findings

83% of UK IT leaders report suffering at least one email-related security incident.

UKEmail security incident

46% of UK IT leaders cited email filtering as the most common defence against email-related incidents.

UKEmail security incidentEmail filtering

38% of UK IT leaders cited AI-driven threat detection as the most common defence against email-related incidents.

UKEmail security incidentAIThreat detection

27% of UK IT leaders in the public sector say they've adopted email security training.

UKEmail security incidentPublic sectorEmail security training

63% of UK IT leaders in the tech sector say they've adopted email filtering.

UKEmail security incidentTechnologyEmail filtering

41% of UK IT leaders cited multi-factor authentication (MFA) as the most common defence against email-related incidents.

UKEmail security incidentMFA

47% of UK IT leaders cited employee security awareness training as the most common defence against email-related incidents.

UKEmail security incidentSecurity awareness training

44% of UK IT leaders in the public sector say they've adopted MFA.

UKEmail security incidentPublic sectorMFA

36% on average (over a third) of all security incidents reported by IT leaders are email-driven.

UKEmail security incident

Nearly half (49%) of UK IT leaders report being hit by an email-related security incident in the past 12 months alone.

UKEmail security incident

52% of all organisational communication in the UK flows through the inbox.

UKEmail security incident

75% of UK IT leaders in the tech sector faced inbox breaches.

UKEmail security incidentTech

87% of UK IT leaders in the finance sector report exposure to email-related incidents.

UKEmail security incidentFinancial

85% of UK IT leaders in the legal sector report exposure to email-related incidents.

UKEmail security incidentLegal

56% of Government bodies in the UK reported a breach in the past year alone.

UKEmail security incidentGovernment

89% of UK IT leaders agreed that well-managed email signatures directly contribute to professionalism and client confidence.

UKEmail security incidentEmail signature

53% of UK IT leaders in the tech sector say they've adopted AI detection.

UKEmail security incidentTechnologyAI detection

92% of Government bodies in the UK reported an email-related breach.

UKEmail security incidentGovernment

39% of respondents of UK IT leaders cited difficulty of balancing security with ease of use as their bigest email security challenge.

UKEmail security incident

42% of respondents of UK IT leaders cited external threats (such as phishing, spoofing, and spam) as their bigest email security challenge.

UKEmail security incidentPhishingSpoofingSpam

38% of respondents of UK IT leaders cited ensuring strong encryption as their bigest email security challenge.

UKEmail security incidentEncryption

87% of UK IT leaders expect email to remain Britain’s primary business channel for at least the next five years.

UKEmail security incident

81% of UK IT leaders view one-to-one email as a critical communications channel, on par with IM and collaboration tools.

UKEmail security incident

45% of UK IT leaders said stronger security and encryption standards is a trend that will have the biggest impact by 2030.

UKEmail security incidentEncryption

41% of UK IT leaders said that tighter integration with real-time collaboration tools is a trend that will have the biggest impact by 2030.

UKEmail security incident

41% of UK IT leaders said that AI-driven automation is a trend that will have the biggest impact by 2030.

UKEmail security incidentAIAutomation

59% of UK IT leaders in the tech sector say they've adopted email security training.

UKEmail security incidentTechnologyEmail security training

53% of UK IT leaders in the tech sector say they've adopted MFA.

UKEmail security incidentTechnologyMFA

26% of UK IT leaders in the public sector say they've adopted AI detection.

UKEmail security incidentPublic sectorAI detection