Question: Can you recommend a solution that blocks bot attacks and fake signups without using CAPTCHAs?

If you want to stop bot attacks and fake signups without CAPTCHAs, Castle is a good alternative. Castle is an API-based information security platform that detects and blocks large-scale bot attacks, fake signups and account takeovers without CAPTCHAs. It includes device intelligence, bot detection, abuse scoring, IP and proxy analysis and more for real-time visibility into threats and targeted protection against different abuse scenarios. With a pay-as-you-go pricing model, Castle is geared for high-scale applications that require high-performance and resilient bot protection.

Another good option is DataDome, which offers bot management and fraud protection with high accuracy and ease of deployment. It uses a machine learning engine to analyze every request in real-time, ensuring a frictionless user experience while maintaining a low false positive rate. DataDome protects against a variety of threats, including account takeover, credential stuffing and web scraping, and offers detailed insights into blocked threats so businesses can make data-driven decisions. It also has a 24/7 SOC team and an intuitive dashboard for monitoring and integration.

For a privacy-first option, check out hCaptcha. This AI security platform detects and blocks both human and bot attacks without collecting personally identifiable information. hCaptcha provides end-to-end security, compliance with global privacy regulations, and customizable dashboards for advanced reporting. It's designed to minimize user friction while ensuring accurate threat detection, making it a great option for businesses that need to balance security with privacy.

Last, HUMAN Security offers a range of cybersecurity solutions to help protect against sophisticated bot attacks, fraud and account takeover. Its Human Defense Platform includes advanced analytics and modular security features that can be customized to meet specific fraud prevention needs. With the ability to check more than 20 trillion digital interactions per week and evaluate multiple signals and algorithms per interaction, HUMAN Security is designed to provide high precision and speed in detecting and mitigating bot-driven threats.