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How do you protect customer and trading data under GDPR?

How do you protect customer and trading data under GDPR?

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Published: 17th August 2026

You protect customer and trading data under GDPR with access control, encryption, managed security, tested backups and good data-handling practices. In short: only the right people can reach personal data, it is protected at rest and in transit, and you can demonstrate that you look after it. GDPR is about being able to show you take data protection seriously, not just claim it.

Tech and trading firms hold sensitive personal and financial data, so getting this right protects both your clients and your reputation. Here’s the practical side.

1. Control who can access data

Personal and trading data should be reachable only by the people who genuinely need it, with access granted by role and reviewed regularly. Strong access control is the heart of protecting data under GDPR.

2. Encrypt and secure it

Encryption on devices and good security around your systems mean data stays protected even if a laptop is lost or an account is attacked. Managed endpoint protection, MFA and email security all support this.

3. Back it up and be able to recover

GDPR expects you to keep data available as well as safe. Tested backups mean you can recover personal data after a mistake or attack, which is part of handling it responsibly.

4. Handle data well day to day

Good habits matter: removing access promptly when people leave, not keeping data longer than needed, and training staff. We help put the technical controls and routines in place that make good data handling normal.

A real example: tidy access and removal

We supported a software company serving financial trading firms where access to data was controlled by role and removed promptly when people left, with encryption and managed security protecting it throughout. Those everyday controls are exactly what responsible data handling looks like.

For most technology and trading firms, this sits within fully managed IT at about £45 to £100 per user per month, billed per user, with the security and resilience these businesses rely on built in.

Why technology and trading firms choose First Stop IT

First Stop IT has supported businesses since 2002, including software and technology companies and firms that serve financial markets. We know the systems these teams depend on: secure VPN and remote access, source control and build pipelines, virtual dev and test environments, Microsoft 365 and Teams, and the security that banks and regulators expect, from multi-factor authentication and endpoint protection to application allowlisting and email security. We work with technology and trading firms in London and across Essex and Hertfordshire. Our credentials include:

  • Cyber Essentials Certified
  • IASME Cyber Assurance (Gold)
  • NCSC Assured Service Provider (Cyber Advisor for Cyber Essentials)
  • Microsoft Partner
  • Crown Commercial Service Supplier (G-Cloud)
  • Quality Principles Certified

We look after more than 2,000 endpoints across 50 companies, we’ve been named a Top 50 UK MSP for three years running, and we support organisations with 10 to 100 employees across Essex, Hertfordshire and London, including Harlow and Bishop’s Stortford.

Book a free IT and cyber security review

Want confidence in how you protect data? Book a free IT and cyber security review with First Stop IT and we’ll review it with you.