Security News This Week: Hackers Broke Into the SEC... A Year Ago

The week kicked off with news that CCleaner, a popular security software tool, had itself been compromised, distributing a backdoor to hundreds of thousands of users and highlighting software's serious supply-chain security issue. Just a few days later, it turned out that the CCleaner was designed instead to target nearly two dozen specific tech firms. That's... not good.

Elsewhere in security news this week, Donald Trump threatened to destroy North Korea in front of the UN General Assembly, a dangerous escalation of his already incendiary rhetoric. WikiLeaks dumped a bunch of information on how Russia spies on its citizens—much of which was already publicly available. We took a look at why the Google Play Store keeps suffering malware plagues, and why you should use a PIN instead of a pattern to lock your Android phone.

Also, a new hacker group linked to Iran appears to be planting destructive malware at a variety of key targets. So there's that.