All Five of the Eyes are glaring like basilisks toward Pyongyang, which they agree was responsible for WannaCry. Some conclude that collective defense works (albeit abetted in this case by someone lucking into the kill-switch) because the outbreak could have been far worse. (US networks proved generally resistant to the campaign.) The White House drew particular attention to Facebook account takedowns and Microsoft fixes as providing valuable and ongoing defense against North Korean cyberattacks.

Two questions at least remain. First, if you wished to deter similar attacks, how might you retaliate? You can hack until the ones and zeros jump, but it's not clear doing so will seriously affect North Korea's regime absent identification of something the regime values that one could hold at risk. Blame, shame, and further isolation may be the best anyone can do, some suggest. And second, how did the alleged NSA exploits used in WannaCry get loose into the hands of the ShadowBrokers in the first place?

Pyongyang hasn't had much to say about the latest round of accusations, but it has denounced earlier attributions as slander and provocation. 

The DPRK's current interests appear to lie in cryptocurrency, with the Lazarus Group paying a great deal of attention to hacking wallets and catphishing people with access to alt-currencies.

Another cyber espionage campaign has been spotted in the Middle East. Nyotron security researchers call it "Copperfield." It's an evolution of the H-Worm (also called "Houdini") that emerged from Algeria four years ago. No firm attribution yet.