For some tech companies, hopes to not get hacked in 2014 have already been dashed.

Self-destructing messaging app Snapchat is on the defensive this week. 4.6 million user names — and their associated phone numbers — were leaked in a security breach. And Microsoft calling service Skype has become the latest victim of the hacking unit calling itself the Syrian Electronic Army. That’s after the S.E.A. apparently hacked into Skype’s Twitter and Facebook accounts and started broadcasting messages telling people not to use Microsoft because the company sells data to governments. The BBC’s Dave Lee joins us to help explain.

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