Researchers at OTORIO have highlighted cybersecurity risks associated with modern Physical Access Control Systems (PACS). The researchers showed that PACS, especially those using the Open Supervised Device Protocol (OSDP), inadvertently created a potential entry point into an organization's internal IP network. The study demonstrates how cybercriminals could exploit doors equipped with cutting-edge building access control measures.

A bipartisan proposal in the recently passed defense policy bill will form a working group to address previously identified cybersecurity gaps in the nation's nuclear weapons systems. The provision, which was first introduced in June, was included in the fiscal year 2024 National Defense Authorization Act (NDAA).

As part of its global Secure by Design campaign, the US Cybersecurity and Infrastructure Security Agency (CISA) has issued a Request for Information (RFI) on the whitepaper titled "Shifting the Balance of Cybersecurity Risk: Principles and Approaches for Secure by Design Software." CISA and its partners seek information on topics, including incorporating security early in the Software Development Life Cycle (SDLC), recurring vulnerabilities, Operational Technology (OT), the economics of Secure by Design, and more, to better inform the agency's Secure by Design campaign.

The ransomware gang ALPHV/BlackCat has announced that its network of affiliates can now target nuclear power plants, hospitals, and critical infrastructure. The move is a response to recent FBI enforcement activity. ALPHV/BlackCat made the announcement on its leak website, which had been offline since December 7, when it was believed to have been shut down by law enforcement. The previously closed ALPHV/BlackCat website briefly displayed an FBI seizure notice.

A ransomware attack on ESO, a provider of Emergency Medical Services (EMS) software, involves the sensitive details of millions of people, including their healthcare data. One impacted system contained information about patients associated with ESO's customers. SSNs were only exposed in a few cases. Healthcare data can be sold on dark web forums to malicious actors who want to commit medical identity theft. This type of identity theft involves using stolen information to submit forged claims to Medicare and other health insurers.

AT&T Alien Labs researchers discovered JaskaGO, a previously undetected Go-based information stealer that targets Windows and macOS systems. JaskaGO supports a wide range of commands and maintains persistence in various ways. The malware's macOS variant was discovered in July 2023, spreading in the form of installers for pirated legitimate software such as CapCut or AnyConnect. According to the researchers, the recent malware sample still has a low detection rate.

The National Security Agency (NSA) recently published its annual report detailing its efforts in cybersecurity and its work with government partners, foreign partners, and defense industrial base (DIB) entities to improve national security.  The NSA announced that its domain security service blocked 10 billion user connections to known malicious or suspicious domains.

Cybersecurity researchers at PRODAFT have detailed the inner workings of the ransomware operation led by Mikhail Pavlovich Matveev, a Russian national indicted earlier this year by the US government for his alleged role in executing thousands of attacks worldwide. Matveev, who goes by the aliases Wazawaka, m1x, Boriselcin, Uhodiransomwar, Orange, and waza, is alleged to have played a major role in the development and distribution of LockBit, Babuk, and Hive ransomware variants since at least June 2020.

In an email campaign characterized by sophisticated evasion tactics, attackers are exploiting a 6-year-old Microsoft Office Remote Code Execution (RCE) flaw to deliver spyware. According to Zscaler, the threat actors use business-related lures in spam emails that deliver files containing the RCE flaw. The attackers' ultimate goal is to load Agent Tesla, a Remote Access Trojan (RAT) and advanced keylogger discovered in 2014. They want to exfiltrate credentials and other data from an infected system through their Telegram bot.

Mozilla recently announced security updates for Firefox and Thunderbird to address 20 vulnerabilities, including several memory safety issues.  Firefox 121 was released with patches for 18 vulnerabilities, five of which have a high severity rating.  The most severe vulnerability is CVE-2023-6856, a heap buffer overflow bug in WebGL, the JavaScript API for rendering interactive graphics within the browser.  This vulnerability could allow an attacker to perform remote code execution and sandbox escape.