Strengthening Email Security for Telegraph Media Group
Telegraph Media Group partnered with Peritus to enhance email protection using AI-driven detection, blocking phishing, BEC attempts, and account takeover risks while improving operational efficiency.
75%
reduction in high-risk email threats reaching users
Protected
advanced filtering to block phishing, BEC attempts, and account takeovers
Automated
streamlined detection and response with AI-driven workflows
1. The Challenge
Telegraph Media Group; one of the UK’s leading media organisations relies heavily on email for editorial communication, partner coordination, and commercial operations.
With increasing volumes of phishing, impersonation, and business email compromise (BEC) attacks targeting high-profile teams, the organisation needed stronger protection and clearer visibility into threat patterns.
Challenges included:
sophisticated phishing campaigns targeting senior staff
rising account takeover attempts
inconsistent filtering across shared and high-volume mailboxes
limited visibility into threat trends and compromised identities
manual security operations creating delays and inefficiencies
To protect sensitive communications and reduce operational risk, the organisation required an advanced, proactive email security layer.
2. Our Approach
Peritus deployed an AI-powered email security enhancement designed to identify, block, and learn from emerging threats targeting the organisation.
Our work included:
Implementing AI-driven detection for phishing, BEC, and impersonation attacks
Analysing sender behaviour, identity spoofing, and suspicious patterns
Enhancing authentication and configuration across Microsoft 365
Reducing reliance on manual triage through automated workflows
Providing insights into threat categories, targeted teams, and risk trends
Guiding improvements to identity protection and conditional access policies
This strengthened the organisation’s security posture while reducing pressure on internal teams.
3. The Outcome
The engagement delivered significant improvement in email security and operational efficiency:
75% reduction in high-risk phishing and impersonation attacks
Automated detection and response, reducing time-to-mitigate incidents
Enhanced protection for high-target roles (editorial, leadership, commercial)
Stronger alignment between identity controls and email security
Clear reporting for technology and security leadership
Reduced risk of account takeover and compromised credentials
Telegraph Media Group gained deeper visibility into threats and a more resilient communication environment.
“Peritus helped us get ahead of increasingly sophisticated email threats. Their AI-led approach strengthened our defences and reduced the operational load on our teams.”