But he added, "They had a hole in their armor, and an arrow went right through it."
P.F. Chang's said on July 1 the breach remains under investigation. The company temporarily shut down its POS system and switched to an old-style manual imprinting system for processing payment cards to prevent further damage.
Since then, it has provided its U.S. restaurants with "an encryption-enabled terminal to securely process credit and debit card information," wrote CEO Rick Federico.
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