May 2020
05.05.2020
US CERT
AA20-126A: APT Groups Target Healthcare and Essential Services
Title
AA20-126A: APT Groups Target Healthcare and Essential Services
Published
May 5, 2020, 2:58 p.m.
URL
https://www.us-cert.gov/ncas/alerts/AA20126A
Summary
Original release date: May 5, 2020SummaryThis is a joint alert from the United States Department of Homeland Security (DHS) Cybersecurity and Infrastructure Security Agency (CISA) and the United Kingdom’s National Cyber Security Centre (NCSC). CISA and NCSC continue to see indications that advanced persistent threat (APT) groups are exploiting the ...
April 2020
29.04.2020
US CERT
AA20-120A: Microsoft Office 365 Security Recommendations
Title
AA20-120A: Microsoft Office 365 Security Recommendations
Published
April 29, 2020, 4:41 p.m.
URL
https://www.us-cert.gov/ncas/alerts/aa20-120a
Summary
Original release date: April 29, 2020SummaryAs organizations adapt or change their enterprise collaboration capabilities to meet “telework” requirements, many organizations are migrating to Microsoft Office 365 (O365) and other cloud collaboration services. Due to the speed of these deployments, organizations may not be fully considering the security configurations of these ...
16.04.2020
US CERT
AA20-107A: Continued Threat Actor Exploitation Post Pulse Secure VPN Patching
Title
AA20-107A: Continued Threat Actor Exploitation Post Pulse Secure VPN Patching
Published
April 16, 2020, 3:21 p.m.
URL
https://www.us-cert.gov/ncas/alerts/aa20-107a
Summary
Original release date: April 16, 2020 | Last revised: June 30, 2020SummaryNote: This Activity Alert uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) framework. See the ATT&CK for Enterprise framework for all referenced threat actor techniques and mitigations. This Alert provides an update to Cybersecurity and Infrastructure Security ...
15.04.2020
US CERT
AA20-106A: Guidance on the North Korean Cyber Threat
Title
AA20-106A: Guidance on the North Korean Cyber Threat
Published
April 15, 2020, 2:31 p.m.
URL
https://www.us-cert.gov/ncas/alerts/aa20-106a
Summary
Original release date: April 15, 2020 | Last revised: June 23, 2020SummaryThe U.S. Departments of State, the Treasury, and Homeland Security, and the Federal Bureau of Investigation are issuing this advisory as a comprehensive resource on the North Korean cyber threat for the international community, network defenders, and the public. ...
08.04.2020
US CERT
AA20-099A: COVID-19 Exploited by Malicious Cyber Actors
Title
AA20-099A: COVID-19 Exploited by Malicious Cyber Actors
Published
April 8, 2020, 2 p.m.
URL
https://www.us-cert.gov/ncas/alerts/aa20-099a
Summary
Original release date: April 8, 2020SummaryThis is a joint alert from the United States Department of Homeland Security (DHS) Cybersecurity and Infrastructure Security Agency (CISA) and the United Kingdom’s National Cyber Security Centre (NCSC). This alert provides information on exploitation by cybercriminal and advanced persistent threat (APT) groups of the ...
March 2020
13.03.2020
US CERT
AA20-073A: Enterprise VPN Security
Title
AA20-073A: Enterprise VPN Security
Published
March 13, 2020, 1:08 p.m.
URL
https://www.us-cert.gov/ncas/alerts/aa20-073a
Summary
Original release date: March 13, 2020 | Last revised: April 15, 2020SummaryAs organizations prepare for possible impacts of Coronavirus Disease 2019 (COVID-19), many may consider alternate workplace options for their employees. Remote work options—or telework—require an enterprise virtual private network (VPN) solution to connect employees to an organization’s information technology ...
February 2020
18.02.2020
US CERT
AA20-049A: Ransomware Impacting Pipeline Operations
Title
AA20-049A: Ransomware Impacting Pipeline Operations
Published
Feb. 18, 2020, 2:06 p.m.
URL
https://www.us-cert.gov/ncas/alerts/aa20-049a
Summary
Original release date: February 18, 2020 | Last revised: June 30, 2020SummaryNote: This Activity Alert uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK™) framework. See the MITRE ATT&CK for Enterprise and ATT&CK for Industrial Control Systems (ICS) frameworks for all referenced threat actor techniques and mitigations. The Cybersecurity ...

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