[SYS] मंजूरी कोड सत्यापित किया जा रहा है: SILICON-SIEGE ... [वैध]
[SYS] दस्तावेज़ संग्रह को डिक्रिप्ट किया जा रहा है ... [OK]
[SYS] मंजूरी स्तर 9 — प्रतिबंधित पहुंच
[SYS] सत्र लॉग किया गया। निगरानी सक्रिय है। कॉपी या वितरित न करें।
[SYS] दस्तावेज़ प्रस्तुत किया जा रहा है ...
वर्गीकृत — LEVEL 9 मंजूरी आवश्यक है
THE SILICON SIEGE -- PAYPAL ANTI-FRAUD OPERATIONS
Operational window: October 2000 - July 2002. Internal codename: Project P. Deployed at PayPal, Palo Alto, California. Adversary: distributed Russian and Eastern European organized-crime fraud rings operating over IRC-coordinated mule networks.
Peak monthly chargeback volume attributable to the adversary reached
Counter-measures: Igor — a statistical behavioral classifier distinguishing scripted from human signups via mouse-trajectory, keystroke-distribution, and IP-geolocation features. Gausebeck-Levchin test — the first commercial deployment of what Carnegie Mellon would, in 2003, generalize and publish as CAPTCHA.
Outcome: chargeback rate fell from 4.7%% to under 0.28%% over the first six months of 2001. Company went public at $15.75 on Nasdaq 2002-02-15. eBay acquired at $1.5 billion valuation 2002-07-03.
Historical significance: first documented case of commercially deployed adversarial machine learning at consumer internet scale. The architecture generalized became the template for every high-trust consumer platform built since.
// गवाह रिपोर्ट प्रस्तुति
यदि आपके पास इस दस्तावेज़ से संबंधित जानकारी है, तो अपना विवरण नीचे प्रस्तुत करें। सभी प्रस्तुतियाँ निगरानी में हैं।
एजेंट पदनाम
घटना रिपोर्ट / सिद्धांत