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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
Dec 2, 2021
Original release date: December 2, 2021SummaryThis joint Cybersecurity Advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) framework, Version 9. See the ATT&CK for Enterprise framework for referenced threat acto…
Nov 17, 2021
Original release date: November 17, 2021 | Last revised: November 19, 2021SummaryActions to Take Today to Protect Against Iranian State-Sponsored Malicious Cyber Activity • Immediately patch software affected by the following vulnerabilities: CVE-2021-344…
Oct 18, 2021
Original release date: October 18, 2021SummaryActions You Can Take Now to Protect Against BlackMatter Ransomware • Implement and enforce backup and restoration policies and procedures. • Use strong, unique passwords. • Use multi-factor authentication. • I…
Oct 14, 2021
Original release date: October 14, 2021 | Last revised: October 25, 2021SummaryImmediate Actions WWS Facilities Can Take Now to Protect Against Malicious Cyber Activity • Do not click on suspicious links. • If you use RDP, secure and monitor it. • Use str…
Current Activity
Dec 2, 2021
Original release date: December 2, 2021CISA and the Federal Bureau of Investigation (FBI) have released a joint Cybersecurity Advisory identifying active exploitation of a vulnerability—CVE-2021-44077—in Zoho ManageEngine ServiceDesk Plus. CVE-2021-4…
Dec 2, 2021
Original release date: December 2, 2021Mozilla has released security updates to address a vulnerability in Network Security Services (NSS).  An attacker could exploit this vulnerability to take control of an affected system.   CISA encourages u…
Dec 2, 2021
Original release date: December 2, 2021CISA has announced the joint National Security Agency (NSA) and CISA publication of the third of a four-part series, Security Guidance for 5G Cloud Infrastructures. Part III: Data Protection examines securi…
Dec 1, 2021
Original release date: December 1, 2021CISA has added five new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence that threat actors are actively exploiting the vulnerabilities listed in the table below. These types of …
Nov 24, 2021
Original release date: November 24, 2021CISA has released actionable Capacity Enhancement Guides (CEGs) to help users and organizations improve mobile device cybersecurity. The CEG: Mobile Device Cybersecurity Checklist for Consumers provides steps for…