Account Defense

Complete protection for your users and your brand.

Stop fake signups instantly, and shield your loyal customers from account takeover.

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Detect with accuracy. Act with confidence.

Sift secures all of your accounts, so you can gain new users and retain existing ones.

Block fake accounts

Keep fraudsters and bots from signing up and damaging your brand and bottom line.

Stop account takeover

Prevent bad actors from accessing good accounts and eroding your customers' trust.

Reduce friction

Introduce dynamic experiences to build simple and secure flows for good users, and stop bad users early.

Speed, accuracy, and scalability in real time

The Sift engine is built to accelerate growth, while protecting your business from bad actors.

Bolstered by the largest global network of data in the industry, our real-time machine learning looks at more than 16,000 signals to identify good and bad users with unparalleled accuracy – so you can stop new attacks before they happen.

Learn how we’re different
High-risk alert

Credit card country mismatches IP address country: USA v. Indonesia

High-risk alert

New IP address detected:

High-risk alert

New desktop browser seen: Chrome on Windows 10

High-risk alert

Desktop browser last location: Jakarta

High-risk alert

Distance traveled between last login sessions: 14,404 km

Comprehensive capabilities

Everything your team needs to secure user accounts and work more efficiently.


Easily detect suspicious behavior associated with account takeover, and quickly stop fraud rings with our Network Graph.


Leverage the accuracy of machine learning to create seamless, dynamic two-factor experiences – all with a single integration.


Automate your defenses to stop credential stuffing and fake account creation, so your users feel safe and have frictionless experiences.


Customizable Review Queues make it easier to audit suspicious signups and logins, so you can work faster and more efficiently.