Stop the bots before they sign in
Credential stuffing, brute-force, and automated account-takeover attempts hit your login endpoints every day. Authdog scores every attempt in real time — fingerprinting devices, throttling abusive actors, and challenging or blocking bots before they ever reach a real account.
Layered defenses
Defense in depth for every login
No single signal catches every attack. Authdog stacks complementary defenses on your auth endpoints — so bots get blocked, humans get through, and your team stays out of the incident channel.
Credential-stuffing protection
Spot the surge of login attempts that follows a breach dump and shut it down — per IP, per account, and across the whole tenant — before a single password lands.
Brute-force throttling
Adaptive rate limits slow repeated failures to a crawl and lock out abusive actors, without punishing legitimate users who fat-finger a password.
Device & browser fingerprinting
Build a stable signal from device, browser, and network attributes to tell a returning human apart from a rotating fleet of headless bots.
Breached-password detection
Check credentials against known breach corpora at sign-up and login, and force a reset the moment a password shows up in the wild.
Suspicious-IP intelligence
Score traffic from known proxies, Tor exits, datacenter ranges, and impossible-travel patterns — then challenge or block the riskiest requests.
Step-up challenges
Escalate only when risk warrants it: trigger MFA or a CAPTCHA-style challenge for suspicious attempts, and keep the happy path frictionless.
Prevention is cheaper than response
Stopping an attack at the login endpoint costs nothing downstream. Letting one through means revoked sessions, support tickets, and a breach to disclose. Bot detection is the cheapest layer in your stack.
Of login traffic can be malicious during an attack
When a breach dump circulates, credential-stuffing bots can dwarf real users. Scoring every attempt keeps that flood off your real accounts.
Of automated takeover attempts stopped at the edge
Fingerprinting, throttling, and breached-password checks combine to reject bots before they reach a password prompt — not after.
Extra steps for legitimate users
Challenges escalate only when risk warrants it, so the people you want signing in never feel the defenses working behind them.
Turn on bot detection in minutes.
Open the Authdog Console to enable adaptive rate limits, breached-password checks, and risk-based challenges on every auth flow.