DLP / Data Security
Stop sensitive data leaving the business - by accident or by malice - across email, endpoints and cloud apps.

Sensitive information should not leave the business by accident or misuse
Data loss prevention identifies sensitive information - customer records, financial data, intellectual property - and reduces the chance it gets shared, copied or emailed to the wrong place.
- Protects customer, financial and regulated data
- Reduces accidental leakage over email and cloud shares
- Underpins compliance evidence for GDPR, ISO and DSPT
- Sensitive data is classified before policies are enforced
- Rules are tested in monitor mode first
- Incidents are reviewed and lessons are captured
Do you know where sensitive data is stored - and how it could leave the business?
Ask us to review your data security and DLP readiness.
Understanding dlp & data security
Most data leaks aren't sophisticated. They're a finance team member emailing a payroll file to the wrong address, an exiting salesperson copying the pipeline to a personal drive, or AI tools quietly hoovering up confidential text. DLP gives you the policies, classification and detection to stop these - without turning the workplace into a prison.
- Cyber Essentials & Cyber Essentials Plus
- ISO 27001:2022 Annex A controls
- NCSC 10 Steps to Cyber Security
- CIS Critical Security Controls v8
What we deploy and run
The concrete controls Telappliant configures, manages and reports on.

DLP & Data Security as run by a UK SOC and engineering team.
Data classification across Microsoft 365 with sensitivity labels.
Microsoft Purview DLP policies for email, Teams, OneDrive and SharePoint.
Endpoint DLP to control USB, clipboard and browser uploads.
Insider risk detection - mass downloads, unusual sharing, departing-employee behaviour.
AI tool governance - block sensitive data from public ChatGPT, Gemini etc.
Incident workflow with right-sized escalation, not noise.
Why Telappliant
What you get with us that you don't get with the alternatives.
Delivered by a UK SOC and engineering team - no offshored ticketing.
Vendor-agnostic. We pick the right tool for your estate, then run it for you.
Mapped to Cyber Essentials, ISO 27001 and the NCSC 10 Steps from day one.
Fixed monthly price - no surprise hourly bills when something goes wrong.
The outcomes for your business
What changes for your team, your auditors and your insurer.
Reduce the most common cause of reportable ICO incidents.
Catch insider risk before it becomes a tribunal or competitor problem.
Safer AI adoption - your data stays inside your tenant.
Demonstrable controls for ISO 27001 and SOC 2.
Measured outcomes, not promises
3000+ UK organisations served and 100000+ end users supported.
< 60 minute average response on security incidents.
4000+ tickets resolved every month with measurable first-time-fix rates.
Vendor-fluent, not vendor-locked
We pick the right tool for your estate, then run it for you.
Trademarks are the property of their respective owners. We have no affiliation unless stated on our partners page.
Use cases
How this capability fits at different scales.
Block accidental external sharing of finance and HR files.
Apply consistent classification across regional offices.
Evidence DLP coverage for FCA, ICO and customer security questionnaires.
How this applies to organisations like yours
Recent situations we've worked through with UK businesses - find the one closest to yours.
Situation. Junior staff occasionally bcc'd client documents to personal Gmail to work from home.
Outcome. Policy blocks sensitive content leaving the tenant; coaching tips guide users to the proper remote tools.
Situation. Departing consultants taking candidate databases to competitors.
Outcome. DLP alerts on bulk downloads and USB exfiltration; two leakage attempts caught and proven for HR.
Situation. FCA wanted evidence client PII can't be emailed externally in clear text.
Outcome. Auto-encryption for client data plus full audit log; sample exports satisfied the FCA file review.
Situation. Worried about patient data leaving in screenshots or chat.
Outcome. M365 DLP and Defender for Cloud Apps cover Teams, OneDrive, browsers and copy-paste paths.
Common questions
Related fundamentals & services
Microsoft 365 Security Hardening
Most SMEs already pay for the controls that cover dlp & data security. We help you turn Microsoft 365 Business Premium into a real security baseline - the front door into the wider Cyber Fundamentals portfolio.
Explore Microsoft 365 hardeningTalk to us about dlp & data security
A 30-minute call to scope what good looks like in your estate.
Talk to a UK technology partner who's done this for 20 years
Book a practical, no-pressure consultation. We'll review your current setup, show where AI communications, cloud telephony or managed IT could improve customer experience and reduce admin - and tell you straight if you don't need us.
- UK-based people, real account management
- Honest recommendations - even if it's not us
- Practical AI where it adds value, not hype
