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Cybersecurity Alerts

Cybersecurity Alerts gathers information from various sources around the world to keep you informed on the latest cyber threats, attacks, and information.

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US-CERT strives for a safer, stronger Internet for all Americans by responding to major incidents, analyzing threats, and exchanging critical cybersecurity information with trusted partners around the world.

Alerts provide timely information about current security issues, vulnerabilities, and exploits.

Alerts
Mar 18, 2021
Original release date: March 18, 2021 | Last revised: April 9, 2021SummaryThis Alert announces the CISA Hunt and Incident Response Program (CHIRP) tool. CHIRP is a forensics collection tool that CISA developed to help network defenders find indicators of …
Mar 17, 2021
Original release date: March 17, 2021 | Last revised: March 24, 2021SummaryThis Advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) framework. See the ATT&CK for Enterprise for all referenced threat actor tactic…
Mar 3, 2021
Original release date: March 3, 2021 | Last revised: April 13, 2021SummaryNote: This Alert was updated April 13, 2021, to provide further guidance.  Cybersecurity and Infrastructure Security Agency (CISA) partners have observed active exploitation o…
Feb 24, 2021
Original release date: February 24, 2021 | Last revised: February 25, 2021SummaryThis joint advisory is the result of a collaborative effort by the cybersecurity authorities of Australia,[1] New Zealand,[2] Singapore,[3] the United Kingdom,[4] and the Uni…
Current Activity
Apr 14, 2021
Original release date: April 14, 2021Google and Microsoft recently published reports on advanced persistent threat (APT) actors targeting cybersecurity researchers. The APT actors are using fake social media profiles and legitimate-looking websites to lur…
Apr 13, 2021
Original release date: April 13, 2021Google has updated the stable channel for Chrome to 89.0.4389.128 for Windows, Mac, and Linux. This version addresses vulnerabilities that an attacker could exploit to take control of an affected system. …
Apr 13, 2021
Original release date: April 13, 2021SAP has released security updates to address vulnerabilities affecting multiple products. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and admini…
Apr 13, 2021
Original release date: April 13, 2021 | Last revised: April 14, 2021Microsoft's April 2021 Security Update mitigates significant vulnerabilities affecting on-premises Exchange Server 2013, 2016, and 2019. An attacker could exploit these vulnerabiliti…
Apr 13, 2021
Original release date: April 13, 2021Adobe has released security updates to address vulnerabilities in multiple Adobe products. An attacker could exploit these vulnerabilities to take control of an affected system. CISA encourages users and administrator…