This timeline records significant cyber incidents since 2006. We focus on cyber attacks on government agencies, defense and high tech companies, or economic crimes with losses of more than a million dollars. Below is a summary of incidents from over the last year. For the full list, click the download [...]
DHS has issued a notice of a CISA emergency directive urging federal agencies of improving the security of government-managed domains (i.e. .gov) to prevent DNS hijacking attacks.
Using the following techniques, attackers have redirected and intercepted web and mail traffic, and could do so for other networked services.
The emergency directive requests federal agencies to check public DNS records for all .gov and other domains they manage to ensure that they have not been tampered with. The check must be completed in 10 days and includes Address (A), Mail Exchanger (MX), and Name Server (NS) records.
Within 10 business days, agencies will have to change the passwords for their DNS account and enable multifactor authentication where available, but CISA warns risks for SMS-based MFA.
DHS also instructed federal agencies to monitor Certificate Transparency logs for any abuse related to fraudulently issued certificates.
The overall process and signs of progress will be monitored by the DHS, the agencies must submit a status report by January 25 and a final report for all the actions done in compliance with the directive by February 5.
In coordination with government and industry partners, the Department of Homeland Security (DHS) Cybersecurity and Infrastructure Security Agency (CISA) is tracking a series of incidents1involving Domain Name System (DNS) infrastructure tampering. CISA is aware of multiple executive branch agency domains that were impacted by the tampering campaign and has notified the agencies that maintain them.”
“To address the significant and imminent risks to agency information and information systems presented by this activity, this emergency directive requires the following near-term actions to mitigate risks from undiscovered tampering, enable agencies to prevent illegitimate DNS activity for their domains, and detect unauthorized certificates.”
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