PayPal’s Matthew Mengerink: Open Source Essential to Success

“PayPal transacts more than US$1,500 every second of every day,
with millions of people around the world relying on the robustness
of its system.

“It comes as a surprise to many people that PayPal runs such a
large financial services company on an open source platform, but
that’s precisely how we’re able to deal with the two competing
demands our business model places on us: security and

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