Data breaches happen for all kinds of reasons, from employee sabotage to human error. But the past week or so has been a big one for security disasters caused by hackers, according to Risk Management.

Two of them involve hackers who infiltrated a third party a corporation had hired to do email marketing. At McDonald's, a company managing the franchisor's email campaigns used another firm to send out the promotions. Hackers stole data from that last firm, including names, phone numbers, and addresses.