Systems Under Siege

Corporate security is under attack from hackers, buggers, spammers, fraudsters, extortionists and staff with a grudge. But keeping the cyber criminals at bay is a job for all managers, says Ron Condon.

In March this year, customers of a Massachusetts-based retailer began to notice fraudulent transactions on their credit card statements. They used a variety of banks and credit-card companies, but were all registered customers at one of 150 warehouse stores operated by BJ's Warehouse Club.

Investigations showed that BJ's had become the victim of a massive and concerted attack on its computer systems, and that the details of up to 8 million customers had been stolen and used to create fake credit cards.

The cards were then used to clock up million of dollars' worth of fraudulent purchases.

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