Are voting machines the next target of Russian hacking? One security expert thinks so.

In case you missed it Friday, well-known security expert and blogger Bruce Schneier penned a very disturbing piece about how the recent hacks of Democratic computer systems are just the start of possible incursions.

Next up? Voting machines that have long been thought to be too insecure and the separate state-run patchwork of them that makes it worse.

"We have to accept that someone is attacking our nation's computer systems in an apparent attempt to influence a presidential election. This kind of cyber attack targets the very core of our democratic process. And it points to the possibility of an even worse problem in November ­that our election systems and our voting machines could be vulnerable to a similar attack."

Schneier recommends that we need to "create tiger teams to test the machines' and systems' resistance to attack, drastically increase their cyber-defenses and take them offline if we can't guarantee their security online."

Schneier does make the salient point that governments, including the U.S., have interfered in foreign elections before, but notes an attempt on this scale is unprecedented.

Also important: Having voter-verified paper trails and that there be no internet voting. That’s right, Silicon Valley; maybe digital is okay for Tinder but swiping right and left isn’t for an election.

This article originally appeared on Recode.net.

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