Tag: Emergency Directive 19-01

On January 22, 2019, the Department of Homeland Security (DHS) posted Emergency Directive 19-01, “Mitigate DNS Infrastructure Tampering.” The directive states that the DHS Cybersecurity and Infrastructure Security Agency (CISA) is aware of multiple executive branch agency domains that were impacted by a DNS tampering campaign. The directive requires that by February 5th agencies must take four specific actions. For each action, we suggest guidance below for AWS customers.