At the minimum, there appears to be a failure to perform adequate functional and stress testing of the app and its back-end systems, noted Jack Mannino, CEO of nVisium, a Herndon, Virginia-based application security provider.

Systems perform differently in preproduction and live environments due to a number of factors, including volume of usage, heavy loads and component failures, he explained.

“This is why exhaustive and comprehensive testing must be done across the software development lifecycle — from prototype development through integration to preproduction or simulated environment — and especially before live deployment for such mission-critical applications,” he told the E-Commerce Times.

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