Latest cybersecurity reporting from selected sources.

Also, Lloyds Data Leak, Dutch Treasury Breach, Citrix Bug Exploit, Pay2Key ActivityThis week, Lloyds data leak hits 450K, Dutch treasury breach, Citrix flaw exploited, Iran-linked ransomware ops, TrueConf zero-day, Russian fraud ring sentenced, Romania targeted, patch gaps persist, and U.S. hospital breach affects 257K.

Williams & Connolly Hit in Zero-Day Campaign Impacting Client EmailsA zero-day vulnerability was used to breach email accounts at the elite D.C. law firm Williams & Connolly, with officials reportedly suspecting the hack is part of a China-linked campaign targeting the U.S. legal sector to support espionage, steal intelligence and establish long-term access routes.

Researchers Uncover Covert Chinese Access to US Service Provider InfrastructureMandiant said it has tracked a Chinese-linked espionage campaign using BRICKSTORM malware to quietly embed within U.S. infrastructure and service providers for over a year, exploiting appliance-level blind spots to maintain persistence, evade detection and potentially develop zero-day exploits.

Over 400 Organizations Breached Via Ongoing ToolShell Attacks, Researchers WarnThe U.S. government agency that maintains and designs America's nuclear weapons was reportedly breached by attackers exploiting zero-day flaws in on-premises Microsoft SharePoint servers, with researchers now counting over 400 victims, including European and Middle Eastern governments.

Tech Giant Says Threat Actors Are Exploiting a Flaw in Widely-Targeted Windows ToolRansomware threat actors are exploiting a zero-day vulnerability discovered in a highly targeted Windows logging system tool in a campaign in part targeting U.S. IT and real estate sectors, Microsoft confirmed in a Tuesday blog post urging customers to apply available patches.

Also: FamousSparrow Is Back, Snowflake Hacker Agrees to ExtraditionThis week, Signal update, FamousSparrow is back, suspected Snowflake hacker agreed to U.S. extradition, train tickets sales hack in Ukraine, a patched Chrome zero-day, phishing targets SEO pros, DrayTek router outage, South African chicken producer attacked, and bad npm packages.

Tianfeng Guan Allegedly Developed Zero-Day Exploit of Sophos XG FirewallThe U.S. federal government rolled out its heavy guns Tuesday against a Chinese hacker allegedly at the center of a zero-day exploit used to hack firewalls made by Sophos, unsealing an indictment, rolling out sanctions and offering $10 million for information leading to the suspect's arrest.

No Patch Yet Available for Second Zero Day to Be Recently Found in VoIP SoftwareSecurity researchers warn of a newly discovered zero-day vulnerability in widely used VoIP telephony software, a discovery that comes as the United States struggles to evict Chinese nation-state hackers from telecom networks. The software is the MiCollab software suite from Canada-based Mitel.

Also: Potential Government Policy Changes; AI-Driven Zero-Day DiscoveriesIn the latest weekly update, ISMG editors discussed how the recent election results may reshape U.S. cybersecurity policy and healthcare privacy under HIPAA and the groundbreaking role of artificial intelligence in Google’s recent discovery of a critical zero-day vulnerability.

U.S. Federal Government Gives Agencies Three Weeks to Patch or MitigateFortinet disclosed an actively exploited vulnerability in its centralized management platform following more than a week of online chatter that edge device manufacturer products have been under renewed attack. Cybersecurity researcher Kevin Beaumont christened the vulnerability "FortiJump."

Also: Turn in Volodymyr Kadariya, Get $2.5 Million from Uncle SamThis week, an ex-Verizon employee pleaded guilty, SonicWall fixed critical flaws,South Korean hackers exploited a zero-day, U.S. retailer Dick's Sporting Goods was breached, the U.S. government offered a big reward, Grok AI will send election queries to Vote.gov, and HIPAA is 28 years old.

Threat Actor Exploited Ivanti Zero-Day Vulnerabilities in CyberattackA nation-state threat actor gained access into an unclassified research and development network operated by MITRE, a non-profit that oversees key federal funded research and development centers for the U.S. government, the organization confirmed on Friday.

CISA Says Agencies Must Disconnect and Reset Ivanti VPN Devices by Midnight FridayU.S. federal agencies have until midnight Friday to disconnect Ivanti VPN devices and perform a factory reset before reconnecting them to the network. Fifteen agencies use the gateways, which were hit by likely Chinese hackers in an espionage campaign and are riddled with zero-day vulnerabilities.

Also: Ivanti Exploitation Continues; Apple Fixes First Zero-Day of 2024This week, U.S. short seller lender EquiLend Holdings was hacked, the Ivanti exploitation continued, Apple addressed the first zero-day of 2024, Ukraine said hackers had hit a Russian research center, Kasseika ransomware evolved, North Korean hackers were active, and Trello experienced a data leak.

US Agencies Told to Remove Ivanti's Affected Products From Federal NetworksThe U.S. Cybersecurity and Infrastructure Security Agency directed federal agencies to implement mitigation measures for two zero-day exploits that affect Ivanti’s popular VPN products while they await a patch, in what one official described as "a rapidly evolving situation."