CAPTCHA-solving response observed in the attack workflow.
A public website was facing large-scale automated registrations despite security controls on the sign-up journey. Attackers combined commercial CAPTCHA-solving services, disposable email addresses, rotating proxies and fresh browser sessions to automate the complete registration flow.
When a full fraudulent sign-up finishes in under ten seconds — what stops thousands of fake accounts per hour?
In the observed scenario, the CAPTCHA-solving step returned in under two seconds and a complete fraudulent sign-up finished in less than ten seconds on average.
After SiARA Shield was introduced as an additional human-verification layer, automated registrations were reduced to near zero while genuine users continued through the normal journey.
CAPTCHA-solving response observed in the attack workflow.
average end-to-end automated fake sign-up before SiARA Shield.
automated registrations after SiARA Shield was introduced.
less wasted compute, email and OTP activity from fake accounts.
The registration endpoint was being targeted by high-volume automation. Every successful fake account created additional application, database, email and monitoring activity.
Attackers did not need to defeat every control directly. Commercial solving services could handle the verification step while automation completed the rest of the registration journey.
Disposable emails, rotating proxies or IP addresses and fresh sessions allowed the workflow to continuously present new identities — making simple reputation rules harder to rely on.
Existing perimeter and application controls remained in place. SiARA Shield added another protection layer — stopping automation before account creation completes.
The objective is not to replace Cloudflare or other controls — it is to prevent automated systems from completing the customer journey at scale.
SiARA Shield adds a human-verification layer to the sign-up journey — alongside existing perimeter and application security.
Confirm a genuine person is behind the registration before the automated workflow finishes.
Works alongside Cloudflare and other protections — an additional layer, not a replacement.
Legitimate users continue through registration without unnecessary extra challenge friction.
Fewer fake accounts means fewer email, OTP and identity-verification events to process.
Security, fraud and operations teams spend less time investigating synthetic registrations.
After SiARA Shield activation, high-volume automated registration activity fell to near-zero levels while genuine customers could still complete the journey.
That protects analytics integrity, reduces infrastructure waste and lowers the cost of chasing disposable identities.
Stopping automation early protects acquisition quality, infrastructure spend and team time — while genuine customers keep a smooth path to sign up.
Add SiARA Shield alongside existing controls to stop automated account creation at scale.
Impact after deployment
When CAPTCHA solving, disposable identities and session rotation run in seconds, fake accounts become an infrastructure and data problem — not just a security alert.
This deployment shows how SiARA Shield can protect the registration journey by verifying humans before account creation completes.
Campaign and performance figures are based on operational information from the observed Cloudflare-protected website registration deployment. Figures such as CAPTCHA-solving response time and end-to-end sign-up duration are approximate observations from the attack workflow described in this case study. CyberSiARA claims no ownership of Cloudflare trademarks or associated intellectual property; Cloudflare is referenced only as the existing control environment.
SiARA Shield by CyberSiARA adds human verification alongside the controls you already have — without unnecessary friction for real users.