The DPA Myth
A contract cannot legalize non-compliant data processing or excessive tracking.
Data Minimization
GDPR requires processing only what is strictly necessary for the security goal.
The Trap
Legacy providers often use security as a cover for cross-site profiling.
The Solution
Deterministic hardware attestation that identifies the device, not the person.
Not necessarily. A DPA is a legal requirement, but it does not override the technical reality. If the provider uses cookies for tracking or builds user profiles, it may still violate data minimization principles.
It is the false sense of security businesses feel when they have a contract (DPA) but their provider still collects excessive personal data that isn't required for bot detection.
We use deterministic hardware and environment challenges that do not require persistent identifiers, cookies, or cross-site tracking, ensuring compliance by design.
The Illusion of Contractual Compliance
Many businesses believe that signing a Data Processing Agreement (DPA) is the final step in achieving GDPR compliance for their security stack. We think this is a dangerous assumption. While a DPA is a mandatory legal instrument under Article 28 of the GDPR, it is merely a framework for how data is handled. It does not justify the collection of that data in the first place.
In our opinion, if a CAPTCHA provider relies on persistent tracking, browser fingerprinting for marketing, or cross-site profiling, a DPA cannot override the fundamental conflict with the principle of data minimization.
Why DPAs Fail to Protect You
The "Processor Trap" occurs when a company relies on a legal document to mask a non-compliant technical architecture.
- Purpose Limitation: Personal data must be collected for specified, explicit, and legitimate purposes. If a provider uses "security" as a pretext to gather data for improving their broader ad-network models, they are likely violating Article 5(1)(b).
- Data Minimization: You should only process the absolute minimum data necessary. Many legacy CAPTCHAs collect mouse movements, keystroke timing, and entire browser histories. We think most of this is unnecessary for determining if a request is automated.
- The US-Transfer Risk: Even with a DPA, if your provider is based in the US, they may be subject to the CLOUD Act or FISA 702. This creates a third-country risk that a standard contract cannot easily solve for strictly regulated European organizations.
Technical Reality vs. Contractual Promise
At TrustSig, we believe compliance should be a technical reality, not just a legal promise. Instead of following the user across the web, we identify the device making the request.
Deterministic Verification
We replace cross-site tracking with hardware-level telemetry. By validating WebGL rendering signatures and CPU thread concurrency, we can mathematically prove a device is genuine without ever needing to know who the user is.
No Cookies, No Cross-Site Profile
Our platform writes nothing to the visitor's device. The device id is derived from hardware and scoped to a single project, so the same machine returns a different id to every customer and no cross-site profile can be assembled. That leaves less data to protect and narrows your liability as a Data Controller.
Edge-First Sovereignty
By processing challenges at the edge and never pooling one customer's signals with another's, we ensure that your bot mitigation strategy aligns with the highest standards of digital sovereignty.
Conclusion
A DPA is a starting point, not a shield. If your CAPTCHA provider is still using cookies to track users across the web, you may be at risk regardless of what your contract says. TrustSig provides a deterministic alternative: the device is identified, the person is not, and the id never leaves your project. That protects both your users and your legal standing.