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The DHS cyber-security agency created its list of security best practices following several engagements with organizations that have migrated to cloud-based collaboration solutions such as Office 365 since October 2018, with some of them being forced to do it to support a fully remote workforce. "CISA continues to see instances where entities are not implementing best security practices in regard to their O365 implementation, resulting in increased vulnerability to adversary attacks." "Due to the speed of these deployments, organizations may not be fully considering the security configurations of these platforms," the agency adds.
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US-CERT ApPoorly configured Office 365 lead to cyber attacks
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Recently migrated to Microsoft Office 365? Review updated Alert on cloud collaboration best practices and how to protect O365 services against cyberattacks at. Today's alert is an update to the AR19-133A analysis report from May 13, 2019, and containing Microsoft Office 365 security observations. "As organizations adapt or change their enterprise collaboration capabilities to meet 'telework' requirements, many organizations are migrating to Microsoft Office 365 (O365) and other cloud collaboration services," CISA explains in the AA20-120A alert published today.
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These recommendations were compiled to address Office 365 security configuration errors that can weaken an organization's otherwise sound security strategy while migrating from on-premise to cloud collaboration solutions during the pandemic. The Cybersecurity and Infrastructure Security Agency (CISA) today issued an update to its Microsoft Office 365 security best practices as part of an alert distributed via the US National Cyber Awareness System.