As you’ve probably heard, Target had a bad month. Between the days of 27 November and 15 December, about 40 million credit card numbers were stolen, making it one of the biggest breaches of its kind in history. As far as we know, the card number and security code were stolen, but debit-card PINs and addresses were not.
Target says they have contained the breach and are cooperating with credit card companies and authorities. Cringely has some analysis, but it has more for people like me to think about how we do things at work than it does for consumers.
And, well, as luck would have it, I shopped a lot at Target between the days in question. And I used both my credit and debit card during that time. Here’s what I’m doing, some of which may be counter-intuitive.

David Farquhar is a computer security professional, entrepreneur, and author. He has written professionally about computers since 1991, so he was writing about retro computers when they were still new. He has been working in IT professionally since 1994 and has specialized in vulnerability management since 2013. He holds Security+ and CISSP certifications. Today he blogs five times a week, mostly about retro computers and retro gaming covering the time period from 1975 to 2000.
