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Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Sep 22, 2022 · Big Data

Graph Computing Algorithms for E‑commerce Anti‑Fraud and Reselling Bot Detection

The Xiaohongshu anti‑fraud team combats sophisticated same‑group and crowdsourced reselling bots by ingesting real‑time transaction streams into a Nebula Graph, using multi‑hop sub‑graph sampling, label propagation, and modularity‑based community detection to identify suspicious clusters, update risk pools, and enforce personalized purchase‑limit rules.

E-commerceGraph Computinganti-fraud
0 likes · 9 min read
Graph Computing Algorithms for E‑commerce Anti‑Fraud and Reselling Bot Detection
IT Services Circle
IT Services Circle
Jul 30, 2022 · Information Security

The Evolution and Challenges of CAPTCHAs: From Text Distortion to AI‑Driven Verification

CAPTCHAs, originally created by Carnegie Mellon researchers to block automated bots, have evolved from simple distorted text to complex image‑selection and behavior‑based challenges, prompting user frustration and driving innovations such as Google’s reCAPTCHA, Apple’s Private Access Tokens, and AI‑generated puzzles that aim to balance security, privacy, and usability.

AIbot detectioncaptcha
0 likes · 8 min read
The Evolution and Challenges of CAPTCHAs: From Text Distortion to AI‑Driven Verification
High Availability Architecture
High Availability Architecture
Mar 11, 2022 · Information Security

Technical Analysis of Y‑BotManager Anti‑Spam Mechanism and SensorData Reverse Engineering

This article presents a detailed technical analysis of the Y‑BotManager anti‑spam system, describing its architecture, the reverse‑engineering process of its SensorData generation, the device and user‑interaction features used for bot detection, and the practical attempts to bypass the protection.

Reverse Engineeringanti-spambot detection
0 likes · 12 min read
Technical Analysis of Y‑BotManager Anti‑Spam Mechanism and SensorData Reverse Engineering
58 Tech
58 Tech
May 8, 2019 · Information Security

Overview of Web Crawling, Anti‑Crawling Techniques, and 58 Anti‑Crawling System

This article introduces the fundamentals of web crawlers, typical crawling methods, and a comprehensive set of anti‑crawling strategies—including IP control, browser and device simulation, CAPTCHA cracking, and traffic analysis—while detailing the architecture and capabilities of the 58 anti‑crawling platform.

anti-crawlingbot detectioninformation security
0 likes · 17 min read
Overview of Web Crawling, Anti‑Crawling Techniques, and 58 Anti‑Crawling System