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GDPR Compliance

GDPR Compliance Made Simple with Client-Side Security

Keeping personal user data safe on the client-side. There are clear rules set by GDPR for protecting personal data. Third-party tracking cookies remain a major compliance issue, because even without consent, they can continue to monitor people. Server-side safeguards are not enough. With a lot of things happening in the browser today, client-side visibility and control are important for your business. Cside offers both with an addition of audit-ready reporting.

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A screenshot of cside's compliance dashboard

Overview

GDPR in a Nutshell

The General Data Protection Regulation defines people's rights and organization's accountability when collecting and using personal data. Regardless of the country where your organization is based, as long as you process personal data of individuals in the EU/EEA, the GDPR is applicable to you. Its simple goal is to make sure that users can trust that their data is handled securely and respectfully.

Any information that can identify someone such as name, address, photo, email address, IP address, device identifiers, biometrics, health details, payment data, etc. are considered as personal data or Personally Identifiable Information (PII). Third-party cookies count as personal data too because they can tie individuals to their behavior across websites. People can control that data. It can be accessed, corrected, tracked how it's stored and used, and requested for deletion. The GDPR defines that the responsibility to safeguard this sensitive information is on the organizations that handle it. They should collect only what's necessary, be transparent, and implement appropriate security measures. GDPR is not a suggestion. Fines of up to €20 million or 4% of global annual turnover, whichever number is higher, if non-compliance or violations are committed. Misuse of tracking tools such as third-party cookies is where GDPR fines make headlines.

Impact

What GDPR means for you

Every organization must be able to demonstrate and prove compliance at any moment. Encryption and access control on the server-side are essential, but not sufficient.

Tracking pixels, marketing tags, analytics, and third-party scripts often collect data in user's browser. That's why client-side visibility and control, backed by monitoring, logging, and reporting are critical.

Solution

How cside blocks your client-side GDPR risks

cside streamlines GDPR compliance. You see every scripts, not just the domains, that run in the browser. And on top of that, you monitor the data touched by scripts with instant alerts on violations. You get pre-execution control and forensic proof. Long story short: you have comprehensive control and audit-ready reports for incidents investigation or reviews.

WITH CSIDE

Pre-execution control and script blocking

Live runtime visibility and alerts

Stops overcollection of data

Cross-border transfer controls

Audit-ready reports 24/7

Requirements

Understanding GDPR requirements

Cookie consent enforcement (Art. 7)

Until consent is obtained or granted, scripts must remain blocked. Cside can detect and intercept third-party scripts before execution and block unauthorized data collection.

Data processing transparency and logging (Art. 12-14, 30)

Visibility on which scripts run, what data is accessed, and where it's sent. Keep track of records with audit-ready reports in line with RoPA/DPIA.

Client-side data minimization (Art. 5)

Only adequate, relevant, and necessary data should be collected. With cside, payloads are inspected, and the extraction of cookies and form data to unexpected endpoints is also prevented. We can stop the unnecessary collection of data in real-time.

Cross-border transfer controls (Art. 44-46)

Cside can track data transfers and show you when the data leaves the EEA, and geo-restrict or reroute it to compliant endpoints.

Incident detection and forensics (Art. 33)

Catch extraction attempts in real-time. Review the impact right away with full script version history and request-level logs.

Real World Example

The Scenario

Take a look at this real-world example. A visitor clicks 'reject all cookies'. Even with the given selection, an analytics script will still fire and read the email field at checkout if there's no client-side control in place.

With cside

Our proxy intercepts the script and tracks its actions. The event is recorded, complete with the script version, touched fields, and endpoint.

The Result

Unauthorized data collection or processing is avoided, plus you get a complete audit-ready log for review. These are all in line with the goal of GDPR: building trust with users and auditors.

Leading companies trust cside

Your Compliance Partner

Built for security teams who need visibility inside the browser, cside delivers proven defense against modern client-side attacks while supporting major compliance frameworks. Your trusted partner for regulatory compliance in the browser. We are your trusted partner for securing the last mile of the web.

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As your partner for web security, we want you to be able to reach us easily. Every customer gets 1:1 access to our team over Slack and Microsoft Teams. We respond in minutes, whether you have a feature request, questions, or ideas.

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