How to Stop Data Breaches in Your Business: A Strategic Overview

Whether your business is large or small, whether you trade in physical places, on the Internet, over the telephone, or via mail order, and whether you accept hundreds or hundreds of thousands of card payments monthly—can your business afford to be hacked?

Customers will not thank your business or continue to reward it with loyalty if you lose their data or handle it in a way that someone else can steal and misuse it. That’s the bottom line.

So, it stands to reason that all businesses must improve their data breach prevention, proactively defend themselves, and safeguard their ability to trade and continue trading online. That can be primarily achieved by protecting customer data, especially payment data, but also by protecting their own intellectual property (IP) and enforcing software licensing.

How to Stop Data Breaches: What Is The Strongest Way To Protect Sensitive Customer Data?

When it comes to protecting sensitive customer data online, prevention is better, cheaper, and less painful than the cure.

Businesses want to choose a platform that protects them against client-side attacks, script injections, and unauthorized access to sensitive data by potentially dangerous third-party tags, pixels, and trackers. Plus, one that helps them:

• EnableIn-Depth Defense 

Keep your business secure and compliant by layering your levels of protection with code obfuscation and maximum visibility over third-party scripts.

• Navigate Changing Regulations

Stay ahead of the ever-changing regulatory landscape with a platform that helps your business comply with new requirements, like PCI DSS v4, before they become effective.

• Deliver Short-Term ROI

Consider a platform that’s managed offsite and needs minimal maintenance once in place to demonstrate short-term ROI.

• Manage Risk Effectively

Benefit from continuous, real-time monitoring of first- and third-party scripts on payment pages and forms and get instant alerts of anomalies and suspicious behavior.

• Move Faster, Be Bolder

Become a fearless digital innovator, knowing that your IP and sensitive data are secure and your user experience is unaffected by page performance.

• Strike The Right Balance 

Seamlessly integrate compliance into business processes without trade-offs between security, compliance, and business goals.

• Partner With A Client-Side Protection Leader

Choose a best-in-class client-side protection platform trusted by big-name brands.

Reverse engineering, zero-day exploits, code modification, and more. The hacker threat is real. Safeguard your customer data, intellectual property, and digital assets, as well as your revenue and competitive advantage.

Is Client-Side Validation Sufficient For Security?

Client-side validation is important in improving user experience by catching errors early. For example, it provides an immediate prompt when a user enters an invalid e-mail address. However, relying on client-side validation exclusively is risky for several reasons.

Client-side validation is executed in the user’s browser, which means it can be easily bypassed or manipulated by an attacker. The validation logic is part of the client-side code and is visible to anyone. Such transparency makes it easier for attackers to understand how to circumvent checks.

Different browsers or user settings may affect client-side code, potentially leading to inconsistent validation results. What’s more, security measures should always be implemented in layers. A successful security strategy should be less of a single line of defense and more of an in-depth defense.

For example, Jscrambler's comprehensive JavaScript monitoring and protection solution ensures your web apps are protected from client-side threats without damaging user experience and simplifying data privacy and compliance.

• Application Shielding

With polymorphic obfuscation, code locks, and runtime protection, attackers can’t reverse engineer, debug, or tamper with your web/mobile app code.

• Webpage Threat Mitigation

Powerful and granular rules engine to control each script running on your website. Allows proactive or reactive blocking of scripts exhibiting malicious behavior.

• Real-Time Threat Notifications

Get instant alerts and benefit from real-time self-defense against tampering, debugging, or poisoning attempts.

• Compliance with Regulations

Manage data access and transfer on the client side to better comply with regulations, such as PSD2, PCI DSS, GDPR, and CCPA.

• Third-Party Risk Management

To secure your supply chain, the Jscrambler engine scrutinizes every user session in real time, regardless of the user’s device or browser.

Jscrambler enables online businesses to prevent consumer data leakage with client-side protection and compliance solutions.

What Are The Repercussions Of Data Security Breaches?

The fully loaded costs of a data breach are far bigger than just the cost of regulatory fines, although these can be significant. For example, non-compliance with GDPR can be up to 4% of annual global turnover or €20 million. The business repercussions could be extensive. They include operational disruption, lost productivity, staff downtime, increased insurance premiums, the cost of recovering lost information, equipment, or data, and the lost revenue of being unable to trade. 

Then there are the direct costs: incident response costs, technical and forensic support costs, breach notification costs, compliance and regulatory fines, and the indirect costs of loss of brand value, reputation, and trust. 

How Do Security Breaches Impact Compliance?

Non-compliance with data security breaches can result in fines, enforcement notices, regulatory investigations, and significant costs (direct, indirect, and opportunity costs). 

How To Handle Website Security And Data Protection

Digital skimming, sometimes also known as e-skimming, web skimming, data skimming, or formjacking, involves stealing sensitive data inputted by users into web forms. 

Skimming is becoming more sophisticated and prevalent. In the first two months of 2025 alone, there have been several high-profile skimming attacks. 

US food delivery platform Grubhub confirmed in February 2025 that hackers breached its internal systems to access the personal details of customers and drivers. More than 375,000 merchants and 200,000 delivery providers in over 4,000 US cities use the Grubhub platform. 

UK telecommunications company Talk Talk initiated an investigation in January 2025 after a hacker claimed to sell information from current and former customers online.

Our own research revealed that the casio.co.uk web skimmer had compromised a growing number of websites and stolen sensitive payment card data.

Given JavaScript's ubiquity and innate security vulnerabilities on payment pages, the PCI Security Standard Council (PCI SSC) published an updated version of the PCI Data Security Standard (PCI DSS) in March 2022. 

Version 4 of the PCI DSS contains two new requirements to protect against and detect digital skimming attacks on payment pages, effective from April 1, 2025.

• Requirement 6.4.3—The first  PCI requirement is designed to minimize the attack surface and manage all JavaScript present on the payment page. 

• Requirement 11.6.1 – The second  PCI requirement aims to detect tampering or unauthorized changes to the payment page and generate an alert when changes are detected.

Jscrambler helps businesses that accept card payments achieve frictionless compliance with requirements 6.4.3 and 11.6.1 of PCD DSS v4. Fast-track your compliance by protecting your web pages within 24 hours of deployment. Our agentless monitoring solution flags potential follow-ups as they occur. 

Don’t just take our word for it. Request a free, no-obligation demo today to see these features in action.