Check Firewall And Email Security

Security awareness training firm KnowBe4 suggests that organizations should check their firewall configuration to ensure that, if criminal network traffic does get into its system, that traffic won't be allowed out. Organizations should also disable SMB1 (the Server Message Block, which contains the exploited flaw), the firm said.

Meanwhile, organizations can also lessen their chances of infection by installing a secure email gateway product, which filters URLs, KnowBe4 said.