This article takes an honest look at DataStealth (a product of Datex Inc.).
Since you're on the cside website, we acknowledge our bias. That said, we've built our case honestly and based our analysis on publicly available information, industry information, and our own or our customers' experiences.
If you want to verify their claims yourself, please go to their product page.
DataStealth is a credible, well-resourced company with genuine PCI credentials, and its network-layer deployment is genuinely smooth. This page isn't about which company is bigger — it's about a difference in vantage point, and what each approach can see and prove.
| Criteria | cside | DataStealth | Why It Matters | What the Consequences Are |
|---|---|---|---|---|
| Approach | Client-side monitoring inside the real browser (first-party script) | Network / protocol-layer inline; validates the served response before the browser | In the rendered page vs. in the delivery path | |
| Per-visitor, in-browser observation | Full support observes scripts in each real visitor's rendered DOM |
Validates the served response; per-visitor runtime-DOM coverage worth confirming | Conditional skimmers fire only for targeted real visitors and after render | Ask how each tool handles geo/time/victim-gated attacks and post-render DOM changes |
| PCI DSS 6.4.3 & 11.6.1 | Full support |
Full support |
Both are built to meet the requirement | Compliance is the floor for either |
| Published threat research / caught attacks | Full support publishes the attacks it catches |
None published | Evidence beats absolutes for a security buyer | Hard to evaluate detection you can't see |
| Device fingerprinting + bot / AI agent detection | Full support |
No support |
Covers visitor identity and agent traffic, not just scripts | A separate product is needed |
| Public pricing & self-serve trial | Full support published pricing, free tier, trial |
Sales-gated; no public pricing or free trial | Evaluate on a deadline without a sales cycle | Friction for PCI-driven mid-market buyers |
| PCI Level 1 Service Provider & PCI SSC Board | — | Full support |
A genuine, verifiable trust signal for DataStealth | Real pedigree in payment-data security |
| Independent product reviews | Full support |
None found on major platforms | Peer validation of the specific product | Limited third-party evidence to evaluate |
What is DataStealth?
DataStealth, from Datex Inc. (Mississauga, Ontario), is a network-layer data-security platform offering eSkimming protection, tokenization, encryption, and data masking with no code changes, SDKs, or integrations. eSkimming and PCI DSS 6.4.3 / 11.6.1 script protection is one module on a tokenization-first platform. It sells enterprise-direct into banks, insurers, hospitals, retailers, and payment processors, and is a PCI DSS Level 1 Service Provider and a member of the PCI SSC Board of Advisors — credentials worth taking seriously.
How DataStealth works
DataStealth operates transparently at the network layer via inline / protocol-layer insertion. It intercepts and inspects data flows and validates scripts and security headers before code reaches consumer browsers, with no agents and no browser-side JavaScript. The same platform also tokenizes payment data, applies dynamic masking and encryption, and runs data discovery and classification. Customers describe deployment as setting up routing rules, and report that it's a smooth process.
Because DataStealth validates the served response in the delivery path rather than running inside the browser, the useful question to put to them is how the platform handles attacks that only manifest for real users: conditional skimmers gated by geography, time, or victim profile, and tampering that happens after the page renders. That's the scenario client-side monitoring is purpose-built to see.
How cside goes further
cside watches what third-party scripts actually do inside each real visitor's browser, in the rendered DOM — the exact place a skimmer has to run to steal data. That per-visitor vantage point is built for conditional, evasive attacks that show clean code to crawlers and network-path checks but fire for targeted shoppers.
cside also publishes the attacks it catches and keeps immutable archives of every script payload, so detection is something you can see and prove, not an absolute you have to take on faith. And cside adds a dedicated fingerprinting product (device fingerprinting, bot and AI agent detection), transparent self-serve pricing with a free tier, a public status page at status.cside.com, and a QSA-validated PCI dashboard.
If your core need is client-side script security with evidence you can hand an auditor, that focus is the difference.
Sign up or book a demo to get started.
Founder and CEO of cside. Previously a product manager on Cloudflare Page Shield (now Cloudflare Client-Side Security). Co-chair of the W3C Anti-Fraud Community Group and a Forbes 30 Under 30 honoree. Building accessible security against client-side attacks — web security is not an enterprise-only problem.
