Computer security & threat advisories

Vigilance and best practices

All of us have a vested interest in computer and internet security. This page reprints certain news, alerts and advisories for informational purposes and without warranty.

Security alerts, bulletins & advisories

You can track various cyber-security threats and more at the US-CERT site.

US-CERTFollow

Avatar US-CERT@USCERT_gov·

6 Mar

📱 @CISAgov always recommends that organizations implement multifactor authentication to prevent data breaches and #ransomware. This includes using a strong password and at least one other method of authentication. http://cisa.gov/Ransomware
#Cybersecurity #MFA #AlwaysAuthenticate

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Avatar US-CERT@USCERT_gov·

6 Mar

CISA is aware of widespread domestic and international exploitation of Microsoft Exchange Server vulnerabilities and urges scanning Exchange Server logs with Microsoft's IOC detection tool to help determine compromise. https://go.usa.gov/xsPHh. #Cyber #Cybersecurity #InfoSec

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Avatar US-CERT@USCERT_gov·

6 Mar

Microsoft has released alternative mitigation techniques for Exchange Server customers who cannot immediately apply updates to address vulnerabilities disclosed on March 2. Read more at https://go.usa.gov/xsP5w. #Cyber #Cybersecurity #InfoSec

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Avatar Cybersecurity and Infrastructure Security Agency@CISAgov·

5 Mar

Critical vulnerabilities in Microsoft Exchange on-premise products could enable an attacker to gain control of an entire enterprise network.

We issued Emergency Directive 21-02 to mitigate risk: http://cisa.gov/ed2102 (1/4)

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Avatar Jake Sullivan@JakeSullivan46·

5 Mar

And, this article offers specific measures beyond just patching to determine if your systems are already compromised: https://us-cert.cisa.gov/ncas/alerts/aa21-062a

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Avatar NSA Cyber@NSACyber·

4 Mar

Protective Domain Name System (PDNS) leverages threat feeds to identify and block connections to known malicious domains. Our recent joint report with @CISAgov details the benefits of PDNS, capabilities to consider, and effective implementation. Read more: https://www.nsa.gov/News-Features/Feature-Stories/Article-View/Article/2523771/nsa-and-cisa-release-cybersecurity-information-on-protective-dns/

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Avatar US-CERT@USCERT_gov·

4 Mar

📢 @CISAgov has updated the Mitigate Microsoft Exchange Server Vulnerabilities Alert with additional detailed mitigations on known exploitations. Review the latest version at https://go.usa.gov/xsU3S.
#Cyber #Cybersecurity #InfoSec #DataProtection #IT

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Summary

Article Name

Computer Security & Threat Advisories

Description

Computer and internet security. This page reprints certain news, alerts and advisories for informational purposes and without warranty.

Author

US CERT

Publisher Name

US Department of Homeland Security

Publisher Logo

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