I just keep an eye on my statements. Been using cards online for, what, almost 20 years now? Haven't ever had problem with stolen credit info/fraud. I know it happens, but like everything else these days, there's a lot of FUD out there...
It is indeed appalling, however little surprising, that in this day and age, businesses don't take more proactive measures to prevent this kind of massive breach - especially big/huge corps that obviously have the resources, if apparently not the will, to do so...