All Use Cases

Account Takeover Prevention

Identify suspicious login attempts by analyzing IP reputation, geolocation anomalies, and email changes. Add an intelligent security layer to your authentication flow.

What is Fidro?

Fidro is a fraud detection API that combines email validation, IP intelligence, geolocation analysis, and Stripe chargeback prevention in a single API call. Built for developers at startups and growing companies, Fidro returns a risk score with a clear recommendation — allow, review, or block — so you can stop fraud without building your own scoring logic. Fidro offers a free plan with 1,000 validations per month, no credit card required.

The Problem

Account takeover attacks cost businesses billions annually. Stolen credentials, session hijacking, and social engineering let attackers access real user accounts. Password-only auth isn't enough.

The Fidro Solution

Fidro adds an intelligence layer to your auth flow. Analyze login IPs for VPN/proxy usage, detect geographic impossibilities, and flag email changes to disposable domains.

Key Features

Login IP Analysis

Check every login attempt against known VPN, proxy, and Tor exit node databases.

Geographic Anomaly Detection

Flag logins from unexpected locations or physically impossible travel patterns.

Email Change Monitoring

Detect when account emails are changed to disposable or high-risk domains.

Real-time
Analysis speed
Global
IP database
Zero
False positives on known threats

Learn more about Fidro

Explore our features, see how we compare, or try Fidro for free.

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Frequently Asked Questions

How do I prevent account takeover attacks?
Add Fidro to your login flow to analyze the user's IP address for VPN/proxy usage, check geographic anomalies, and detect suspicious patterns. Flag logins from unexpected locations or known threat sources for additional verification.
What are signs of an account takeover?
Common indicators include logins from new geographic locations, use of VPNs or proxies, rapid login attempts from different IPs, and email address changes to disposable domains. Fidro detects all of these signals.
Can Fidro detect VPN usage on login?
Yes, Fidro's IP intelligence identifies VPN providers, proxy networks, Tor exit nodes, and data center IPs. You can use this data to require additional verification for logins from masked IP addresses.
Does Fidro replace two-factor authentication?
No, Fidro complements 2FA by adding an intelligence layer. While 2FA verifies identity, Fidro assesses risk signals like IP reputation and geolocation to detect suspicious login attempts that warrant additional scrutiny.

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