How do you perform on a test that checks if you can leak sensitive information such as credit card numbers?

How are we testing?:

This test checks if a set of numbers that match the format of valid credit card numbers can be sent out over your network. Your network security infrastructure should easily identify these numbers as credit cards and apply a block to them.

Why is this test important?:

For organizations requiring PCI compliance, Credit Card data must be protected. Credit card numbers are often the target of criminals who use them to commit theft and fraud. When a breach of credit card information occurs, it can expose your organization to negative press attention, federal enforcement actions, lawsuits from customers whose information was compromised and other legal actions. You may also be assessed sizable penalties if you fail to comply with the numerous, and sometimes contradictory, requirements of various regional laws governing data breaches. Costs incurred include the provision of fraud monitoring for 1 year or more and remediation services to consumers affected.

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How Frequently Do Data Breaches Occur?

Data breach incidents doubled to more than 1,400 annually over a 5-year period 2009-13 with a data breach in the US costing $188 per customer record in 2013. Recently, Home Depot, Target and the State of South Carolina revealed massive data breaches compromising the credit card numbers of millions of customers.
In Home Depot's case, the breach has triggered government investigations, possible fines and a review by ratings agencies.Source

In the News:

A database of thousands of credit cards was left exposed on the open internet - ZDNet

28 Apr 2017
New day, new leak. A US online pet store has exposed the details of more than 110,400 credit cards used to make purchases through its website, researchers have found. In a stunning show of poor security, the Austin, Texas-based company ...

Home Depot Data Leak | Consumer Privacy Protection - Consumer ... -

27 Apr 2017
The leak of Home Depot customer data on the retailer's website offers a glimpse into a vast class of personal information that is offered virtually no legal ...

GameStop investigates reports of credit card security breach -

09 Apr 2017
... investigating a possible security breach leaking customers' credit card details. Customers who have used the retailer's online store are being warned that hackers may have stolen financial data from the website, including shoppers' customer card ...

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