Jw Chargebacks911 | Knowledge Hub

Jarrod Wright for Chargebacks911

Nov 2

Building Your Own Chargeback and Fraud Ratio Monitor Before the Networks Do

#analytics #fintech #security

6 min read

Jarrod Wright for Chargebacks911

Nov 2

From One Chargeback to a Fraud Ring: Building Link Analysis That Works

#backend #data #security

6 min read

Jarrod Wright for Chargebacks911

Oct 28

Finding Fraud Rings with Link Analysis: A Union-Find Approach

#algorithms #data #security

7 min read

Jarrod Wright for Chargebacks911

Oct 23

Modeling PayPal's Tiered Dispute Fee With a Trailing-Window Monitor

#architecture #backend #fintech #systemdesign

6 min read

Jarrod Wright for Chargebacks911

Oct 23

Don't Refund on 'Delivered': Hardening Return Workflows Against FTID Fraud

#backend #programming #security

6 min read

Jarrod Wright for Chargebacks911

Oct 23

Detecting Mastercard 2-Series Cards: BIN Range Logic That Doesn't Break

#programming #softwaredevelopment #softwareengineering

6 min read

Jarrod Wright for Chargebacks911

Oct 14

Detecting Abnormal Keyed-Entry Rates from POS Entry Mode Data

#analytics #data #monitoring #security

1

6 min read

Jarrod Wright for Chargebacks911

Oct 13

Building a VAMP Ratio Monitor: Merchant and Portfolio Math in Practice

#analytics #fintech #security

2

1

6 min read

Jarrod Wright for Chargebacks911

Oct 13

Designing Account Holds for Chargebacks

#cybersecurity #stripe #fintech #banking

1

4 min read

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Jarrod Wright

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Chargebacks911

Building Your Own Chargeback and Fraud Ratio Monitor Before the Networks Do

From One Chargeback to a Fraud Ring: Building Link Analysis That Works

Finding Fraud Rings with Link Analysis: A Union-Find Approach

Modeling PayPal's Tiered Dispute Fee With a Trailing-Window Monitor

Don't Refund on 'Delivered': Hardening Return Workflows Against FTID Fraud

Detecting Mastercard 2-Series Cards: BIN Range Logic That Doesn't Break

Detecting Abnormal Keyed-Entry Rates from POS Entry Mode Data

Building a VAMP Ratio Monitor: Merchant and Portfolio Math in Practice

Designing Account Holds for Chargebacks