automated fake registrations before SiARA Shield in this scenario.
An Azure-hosted SaaS platform was targeted by automated fake-account creation. Attackers used disposable email addresses, CAPTCHA-solving services, automated email OTP retrieval, rotating proxies and fresh virtual-machine sessions to make each attempt appear new.
When CAPTCHA and OTP only prove mailbox access — not a human — what stops the bots?
Thousands of fake registrations created heavy application and infrastructure load and made simple IP or session tracking ineffective.
In this illustrative deployment scenario, adding SiARA Shield at the registration journey reduced automated fake-registration activity to near zero while legitimate users could continue normally.
automated fake registrations before SiARA Shield in this scenario.
potential automated sign-up cycle once CAPTCHA, email and OTP are scripted.
observed automated fake-registration activity after SiARA Shield.
could continue without repeated CAPTCHA-style friction.
The platform was receiving thousands of automated account registrations. The traffic consumed application resources, triggered repeated email OTP processing and placed enough pressure on the Azure-hosted service to degrade availability.
Google reCAPTCHA and email OTP were already in place. Bots could outsource CAPTCHA solving, create disposable email inboxes, retrieve OTP messages automatically and submit the OTP back to the site — proving mailbox access, not human presence.
Attackers rotated proxies and IP addresses, used large pools of email identities and started fresh sessions from virtual machines after a few attempts.
At scale, fake sign-ups can increase Azure compute, database, API and logging costs; overwhelm registration services; contaminate analytics; abuse trials; raise SOC workload; and damage customer experience through slowdowns or outages.
Once automated, CAPTCHA, email delivery and OTP submission become repeatable workflow steps — not proof of a genuine customer.
SiARA Shield adds a human-verification layer that does not depend solely on IP, email, device or session reputation.
Assess interaction behaviour in real time to spot sophisticated automation that looks like a new user.
Confirm a genuine person is behind the registration before the automated workflow completes.
Reduce fraudulent sign-ups that trigger repeated verification-email and OTP processing.
Legitimate customers can continue registering without unnecessary challenge interruptions.
Less bot traffic means fewer unnecessary compute, database, API and logging operations on Azure.
In this anonymised illustrative scenario, the platform moved from thousands of automated registrations per day and significant server pressure to near-zero observed fake sign-up activity after SiARA Shield was placed in the registration journey.
That protects service availability, cloud spend, analytics integrity and the experience for genuine users.
Stronger protection at registration reduces infrastructure load and fake-account contamination while genuine customers keep a smooth path to sign up.
SiARA Shield verifies human interaction before the automated workflow completes account creation.
Impact after deployment
Modern fake-account bots can pass CAPTCHA, receive email OTPs and rotate identity signals faster than traditional controls can keep up.
This scenario shows how SiARA Shield can protect SaaS registration by verifying human interaction — without relying solely on IP, email, device or session reputation.
Publication note: This anonymised illustrative case study demonstrates a representative Azure-hosted SaaS attack and protection scenario. Volumes, timing and outcome are scenario data, not independently audited claims for a named customer; actual results vary by environment. CyberSiARA claims no affiliation with Microsoft Azure beyond describing a common hosting environment used in this scenario.
SiARA Shield by CyberSiARA helps distinguish legitimate users from sophisticated automated activity — without unnecessary friction.