Rare Earth Juejin Tech Community
Oct 17, 2024 · Information Security
Security Incident Analysis and Captcha Strategy for Preventing SMS Spam Attacks
After a night-time SMS spam attack that cost 400 RMB, the team analyzed the breach, evaluated various captcha methods—including text, slider, reCAPTCHA v2/v3, and 2FA—implemented temporary throttling, and ultimately adopted a combined reCAPTCHA and two‑factor authentication approach to strengthen account security.
2FASMS attackVerification
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