As the holiday season ramps up, many retailers are unaware that one of the industry’s best practices could put them at risk of a breach: hiring seasonal workers. Last year, retailers hired more than 757,000 temporary employees to keep up with the busy shopping season. And while it may seem like only good can come from the extra help, security incidents prove otherwise. For example, Nordstrom suffered a data breach at the hands of a contracted worker who accessed and improperly handled customer information, leading to a leak of social security numbers, checking accounts and more.

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