8 US telcos compromised, FBI advises Americans to use encrypted communications - Help Net Security
FBI and CISA officials have advised Americans to use encrypted call and messaging apps to protect their communications from threat actors.
Enhanced Visibility and Hardening Guidance for Communications Infrastructure
This guide provides network engineers and defenders of communications infrastructure with best practices to strengthen their visibility and harden their network
FBI, CISA urge Americans to use secure messaging apps in wake of massive cyberattack
Your unencrypted RCS messages between iPhones and Android devices can be spied on by foreign attackers. Here's how to protect yourself.
2023 Top Routinely Exploited Vulnerabilities | CISA
In 2023, malicious cyber actors exploited more zero-day vulnerabilities to compromise enterprise networks compared to 2022, allowing them to conduct cyber operations against higher-priority targets. In 2023, the majority of the most frequently exploited vulnerabilities were initially exploited as a zero-day, which is an increase from 2022, when less than half of the top exploited vulnerabilities were exploited as a zero-day. Malicious cyber actors continue to have the most success exploiting vulnerabilities within two years after public disclosure of the vulnerability. The utility of these vulnerabilities declines over time as more systems are patched or replaced. Malicious cyber actors find less utility from zero-day exploits when international cybersecurity efforts reduce the lifespan of zero-day vulnerabilities.
Critical Ivanti vTM auth bypass bug now exploited in attacks
CISA has tagged another critical Ivanti security vulnerability, which can let threat actors create rogue admin users on vulnerable Virtual Traffic Manager (vTM) appliances, as actively exploited in attacks.
Insecure software makers are the real cyber villains – CISA
Write better code, urges Jen Easterly. And while you're at it, give crime gangs horrible names like 'Evil Ferret'
Multiple attacks forces CISA to order agencies to upgrade or remove end-of-life Ivanti appliance
The nation’s top cyber watchdogs urged federal agencies to either remove or upgrade an Ivanti appliance that is no longer being updated and has been exploited in attacks.
Russian Military Cyber Actors Target US and Global Critical Infrastructure
The Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), and National Security Agency (NSA) assess that cyber actors affiliated with the Russian General Staff Main Intelligence Directorate (GRU) 161st Specialist Training Center (Unit 29155) are responsible for computer network operations against global targets for the purposes of espionage, sabotage, and reputational harm since at least 2020. GRU Unit 29155 cyber actors began deploying the destructive WhisperGate malware against multiple Ukrainian victim organizations as early as January 13, 2022. These cyber actors are separate from other known and more established GRU-affiliated cyber groups, such as Unit 26165 and Unit 74455.
White House working on cyber insurance policy proposal for ‘catastrophic’ incidents
At the Black Hat cybersecurity conference on Thursday, National Cyber Director Harry Coker, Jr. said his office is working with the Department of Treasury’s federal insurance office as well as officials at the Cybersecurity and Infrastructure Security Agency (CISA) on the effort.
Chinese APT40 hackers hijack SOHO routers to launch attacks
An advisory by CISA and multiple international cybersecurity agencies highlights the tactics, techniques, and procedures (TTPs) of APT40 (aka
CISA confirms hackers may have accessed data from chemical facilities during January incident
The agency found no evidence that hackers exfiltrated information but noted the intrusion “may have resulted in the potential unauthorized access” to security plans, vulnerability assessments and user accounts within a national system to protect the chemicals sector.
CISA warns of Windows and UnRAR flaws exploited in the wild
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two more flaws to its catalog of Known Exploited Vulnerabilities, based on evidence of active exploitation.
People’s Republic of China State-Sponsored Cyber Actors Exploit Network Providers and Devices
Best Practices • Apply patches as soon as possible • Disable unnecessary ports and protocols • Replace end-of-life infrastructure • Implement a centralized patch management system
2021 Top Routinely Exploited Vulnerabilities | CISA
This joint Cybersecurity Advisory (CSA) was coauthored by cybersecurity authorities of the United States, Australia, Canada, New Zealand, and the United Kingdom: the Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), Federal Bureau of Investigation (FBI), Australian Cyber Security Centre (ACSC), Canadian Centre for Cyber Security (CCCS),
NSA Releases Network Infrastructure Security Guidance
The National Security Agency (NSA) has released a new Cybersecurity Technical Report (CTR): Network Infrastructure Security Guidance. The report captures best practices based on the depth and breadth of experience in supporting customers and responding to threats. Recommendations include perimeter and internal network defenses to improve monitoring and access controls throughout the network. PDF Document
Destructive Malware Targeting Organizations in Ukraine
Actions to Take Today: • Set antivirus and antimalware programs to conduct regular scans. • Enable strong spam filters to prevent phishing emails from reaching end users. • Filter network traffic. • Update software. • Require multifactor authentication. Leading up to Russia’s unprovoked attack against Ukraine, threat actors deployed destructive malware against organizations in Ukraine to destroy computer systems and render them inoperable.
CISA Adds One Known Exploited Vulnerability to Catalog
CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence that threat actors are actively exploiting the vulnerability listed in the table below. These types of vulnerabilities are a frequent attack vector for malicious cyber actors of all types and pose significant risk to the federal enterprise.
CISA: Email from federal agencies possibly accessed in Russian breach of Microsoft
CISA publicly released an emergency directive issued to federal agencies earlier this month, detailing how a breach at Microsoft could have affected the government.
CISA warns of Windows and UnRAR flaws exploited in the wild
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two more flaws to its catalog of Known Exploited Vulnerabilities, based on evidence of active exploitation.
People’s Republic of China State-Sponsored Cyber Actors Exploit Network Providers and Devices
Best Practices • Apply patches as soon as possible • Disable unnecessary ports and protocols • Replace end-of-life infrastructure • Implement a centralized patch management system
2021 Top Routinely Exploited Vulnerabilities | CISA
This joint Cybersecurity Advisory (CSA) was coauthored by cybersecurity authorities of the United States, Australia, Canada, New Zealand, and the United Kingdom: the Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), Federal Bureau of Investigation (FBI), Australian Cyber Security Centre (ACSC), Canadian Centre for Cyber Security (CCCS),
NSA Releases Network Infrastructure Security Guidance
The National Security Agency (NSA) has released a new Cybersecurity Technical Report (CTR): Network Infrastructure Security Guidance. The report captures best practices based on the depth and breadth of experience in supporting customers and responding to threats. Recommendations include perimeter and internal network defenses to improve monitoring and access controls throughout the network. PDF Document
Destructive Malware Targeting Organizations in Ukraine
Actions to Take Today: • Set antivirus and antimalware programs to conduct regular scans. • Enable strong spam filters to prevent phishing emails from reaching end users. • Filter network traffic. • Update software. • Require multifactor authentication. Leading up to Russia’s unprovoked attack against Ukraine, threat actors deployed destructive malware against organizations in Ukraine to destroy computer systems and render them inoperable.
CISA Adds One Known Exploited Vulnerability to Catalog
CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence that threat actors are actively exploiting the vulnerability listed in the table below. These types of vulnerabilities are a frequent attack vector for malicious cyber actors of all types and pose significant risk to the federal enterprise.
Why CISA is Warning CISOs About a Breach at Sisense
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) said today it is investigating a breach at business intelligence company Sisense, whose products are designed to allow companies to view the status of multiple third-party online services in a single dashboard.…
CISA warns of Windows and UnRAR flaws exploited in the wild
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two more flaws to its catalog of Known Exploited Vulnerabilities, based on evidence of active exploitation.
People’s Republic of China State-Sponsored Cyber Actors Exploit Network Providers and Devices
Best Practices • Apply patches as soon as possible • Disable unnecessary ports and protocols • Replace end-of-life infrastructure • Implement a centralized patch management system
2021 Top Routinely Exploited Vulnerabilities | CISA
This joint Cybersecurity Advisory (CSA) was coauthored by cybersecurity authorities of the United States, Australia, Canada, New Zealand, and the United Kingdom: the Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), Federal Bureau of Investigation (FBI), Australian Cyber Security Centre (ACSC), Canadian Centre for Cyber Security (CCCS),
NSA Releases Network Infrastructure Security Guidance
The National Security Agency (NSA) has released a new Cybersecurity Technical Report (CTR): Network Infrastructure Security Guidance. The report captures best practices based on the depth and breadth of experience in supporting customers and responding to threats. Recommendations include perimeter and internal network defenses to improve monitoring and access controls throughout the network. PDF Document
Destructive Malware Targeting Organizations in Ukraine
Actions to Take Today: • Set antivirus and antimalware programs to conduct regular scans. • Enable strong spam filters to prevent phishing emails from reaching end users. • Filter network traffic. • Update software. • Require multifactor authentication. Leading up to Russia’s unprovoked attack against Ukraine, threat actors deployed destructive malware against organizations in Ukraine to destroy computer systems and render them inoperable.