Alerts

The United States and international cybersecurity authorities are issuing this joint Cybersecurity Advisory (CSA) to highlight a recently discovered cluster of activity of interest associated with a People’s Republic of China (PRC) state-sponsored cyber actor, […]

Summary Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and […]

SUMMARY The Federal Bureau of Investigation (FBI) and Cybersecurity and Infrastructure Security Agency (CISA) are releasing this joint Cybersecurity Advisory (CSA) in response to the active exploitation of CVE-2023-27350. This vulnerability occurs in certain versions […]

SUMMARY The Snake implant is considered the most sophisticated cyber espionage tool designed and used by Center 16 of Russia’s Federal Security Service (FSB) for long-term intelligence collection on sensitive targets. To conduct operations using […]

APT28 accesses improperly maintained Cisco routers and deploys malware on unpatched units working with CVE-2017-6742. Overview and Context The British isles Countrywide Cyber Security Centre (NCSC), the US National Security Agency (NSA), US Cybersecurity and […]

SUMMARY Note: this joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically […]

SUMMARY Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and […]

SUMMARY From November 2022 through early January 2023, the Cybersecurity and Infrastructure Security Agency (CISA) and authoring organizations identified the presence of indicators of compromise (IOCs) at a federal civilian executive branch (FCEB) agency. Analysts […]

Summary The Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), and Multi-State Information Sharing and Analysis Center (MS-ISAC) (hereafter referred to as the “authoring organizations”) are releasing this joint Cybersecurity Advisory (CSA) to […]

Summary Actions to take today to mitigate cyber threats from ransomware: • Prioritize remediating known exploited vulnerabilities.• Train users to recognize and report phishing attempts.• Enable and enforce phishing-resistant multifactor authentication. Note: This joint Cybersecurity […]