It might be impossible to prevent hackers from breaking into corporations like Capital One. But here's what companies should do anyway to make sure data doesn't fall into the wrong hands. (AMZN)

Capital One is the latest major corporation to fall victim to a data breach, as it revealed on Monday that an intruder gained access to personal information in an incident that puts 106 million customers at risk.

A former Amazon employee is said to have obtained sensitive Capital One customer data stored on Amazon Web Services, the retailer's massively popular cloud computing service. Federal prosecutors say that the alleged intruder, Paige Thompson, was able to gain access to information like names, addresses, email addresses, dates of birth, and the social security numbers of 140,000 customers and bank account numbers of 80,000 customers.

Companies might not always be able to get ahead of hackers and other bad guys, who are always finding new ways and means to exploit security vulnerabilities and flaws. But experts say there are measures that can be taken to spot intruders quickly and ensure that sensitive data doesn't fall into the wrong hands.