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WannaCry fallout -- the worst is yet to come, experts say

Maria Korolov | May 18, 2017
The massive scale of the recent WannaCry ransomware attack has exposed some significant weaknesses in global IT systems.

Most immediately, enterprises with vulnerable machines need to close the specific ports that WannaCry took advantage of.

"I expect organizations will take a look at internal firewalling off the port 445 which was how the attack propagated," said Chris Wysopal, CTO and cofounder at Veracode. "It should absolutely be firewalled from the internet but organization may take a look at also blocking it between partner networks or within different departments."

 

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