5. developers
+2.5
MILLIONpayments/year
4.9
BILLION
payments/
second at
peak
~30
0
active customer
accounts
184
M
petabytes of
data
42
database
calls/ quarter
4.5
T
PayPal operates
one of the largest
PRIVATE
CLOUDS
in the world
We have transformed
core business
processes into robust
SERVICE-BASED
PLATFORMS
The power of
our platform
Our technology transformation enables us to:
• Process payments at tremendous scale
• Accelerate the innovation of new products
• Engage world-class developers & technologists
About PayPal
7. Fraud Prevention @ PayPal
Robust feature engineering, machine
learning and statistical models
Highly scalable and multi-layered
infrastructure software
Superior team of data scientists,
researchers, financial and intelligence
analysts
Images source:
8. Fraud Prevention @ PayPal
• Employs advanced machine learning and statistical models to flag
fraudulent behavior up-front
• More sophisticated algorithms after transaction is complete
Transaction Level
• Monitor account level activity to identify abusive behavior
• Abusive pattern include frequent payments, suspicious profile
changes
Account Level
• Monitor account-to-account interaction
• Frequent transfer of money from several accounts to one central
account
Network Level
9. Fraud Prevention – What are we up against?
Fraudsters are becoming increasingly smarter and adaptive
Need cost-effective solutions that can model complex attack
patterns not previously observed
Need scalable and computationally efficient prediction models