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Cisco has once again fixed four  previously disclosed critical bugs  in its Jabber video conferencing and messaging app that were inadequately addressed, leaving its users susceptible to remote attacks. The vulnerabilities, if successfully exploited, could allow an authenticated, remote attacker to execute arbitrary code on target systems by sending specially-crafted chat messages in group conversations or specific individuals. They were reported to the networking equipment maker on September 25 by Watchcom , three weeks after the Norwegian cybersecurity firm publicly disclosed multiple security shortcomings in Jabber that were found during a penetration test for a client in June. The new flaws, which were uncovered after one of its clients requested a verification audit of the patch, affects all currently supported versions of the Cisco Jabber client (12.1 - 12.9). "Three of the four vulnerabilities Watchcom  disclosed in September  have not been sufficiently...

Critical flaws in a core networking library powering Valve's online gaming functionality could have allowed malicious actors to remotely crash games and even take control over affected third-party game servers. "An attacker could remotely crash an opponent's game client to force a win or even perform a 'nuclear rage quit' and crash the Valve game server to end the game completely," Check Point Research's Eyal Itkin noted in an analysis published today. "Potentially even more damaging, attackers could remotely take over third-party developer game servers to execute arbitrary code." Valve is a popular US-based video game developer and publisher behind the game software distribution platform Steam and several titles such as Half-Life, Counter-Strike, Portal, Day of Defeat, Team Fortress, Left 4 Dead, and Dota. The four flaws (CVE-2020-6016 through CVE-2020-6019) were uncovered in Valve's Game Networking Sockets ( GNS ) or Steam Sockets libr...

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I had the honor of hosting the first episode of the Xposure Podcast live from Xposure Summit 2025. And I couldn't have asked for a better kickoff panel: three cybersecurity leaders who don't just talk security, they live it. Let me introduce them. Alex Delay , CISO at IDB Bank, knows what it means to defend a highly regulated environment. Ben Mead , Director of Cybersecurity at Avidity Biosciences, brings a forward-thinking security perspective that reflects the innovation behind Avidity's targeted RNA therapeutics. Last but not least, Michael Francess , Director of Cybersecurity Advanced Threat at Wyndham Hotels and Resorts, leads the charge in protecting the franchise. Each brought a unique vantage point to a common challenge: applying Continuous Threat Exposure Management (CTEM) to complex production environments. Gartner made waves in 2023 with a bold prediction: organizations that prioritize CTEM will be three times less likely to be breached by 2026. But here's the kicker -...

The US Federal Trade Commission and a coalition of 48 state attorneys general on Wednesday filed a pair of sweeping antitrust suits against Facebook, alleging that the company abused its power in the marketplace to neutralize competitors through its acquisitions of Instagram and WhatsApp and depriving users of better privacy-friendly alternatives. "Facebook has engaged in a systematic strategy — including its 2012 acquisition of up-and-coming rival Instagram, its 2014 acquisition of the mobile messaging app WhatsApp, and the imposition of anti-competitive conditions on software developers — to eliminate threats to its monopoly," the FTC  said  in its complaint. A  separate lawsuit  filed by New York Attorney General Letitia James also claimed that in illegally acquiring competitors in a predatory manner, the social media company stripped users of the benefits of competition, limited consumer choices, and their access to rivals with better privacy practices. Spec...

A Russian threat actor known for its malware campaigns has reappeared in the threat landscape with yet another attack leveraging COVID-19 as phishing lures, once again indicating how adversaries are adept at repurposing the current world events to their advantage. Linking the operation to a sub-group of APT28 (aka Sofacy, Sednit, Fancy Bear, or STRONTIUM), cybersecurity firm Intezer said the pandemic-themed phishing emails were employed to deliver the Go version of Zebrocy (or Zekapab) malware. The cybersecurity firm told The Hacker News that the campaigns were observed late last month. Zebrocy is delivered primarily via phishing attacks that contain decoy Microsoft Office documents with macros as well as executable file attachments. First spotted in the wild in 2015 , the operators behind the malware have been found to overlap with GreyEnergy , a threat group believed to be the successor of BlackEnergy aka Sandworm , suggesting its role as a sub-group with links to Sofacy and ...

Cybersecurity researchers disclosed a dozen new flaws in multiple widely-used embedded TCP/IP stacks impacting millions of devices ranging from networking equipment and medical devices to industrial control systems that could be exploited by an attacker to take control of a vulnerable system. Collectively called " AMNESIA:33 " by Forescout researchers, it is a set of 33 vulnerabilities that impact four open-source TCP/IP protocol stacks — uIP, FNET, picoTCP, and Nut/Net — that are commonly used in Internet-of-Things (IoT) and embedded devices. As a consequence of improper memory management,  successful exploitation  of these flaws could cause memory corruption, allowing attackers to compromise devices, execute malicious code, perform denial-of-service (DoS) attacks, steal sensitive information, and even poison DNS cache. In the real world, these attacks could play out in various ways: disrupting the functioning of a power station to result in a blackout or taking smoke a...

FireEye, one of the largest cybersecurity firms in the world, said on Tuesday it became a victim of a  state-sponsored attack  by a "highly sophisticated threat actor" that stole its arsenal of Red Team penetration testing tools it uses to test the defenses of its customers. The company said it's actively investigating the breach in coordination with the US Federal Bureau of Investigation (FBI) and other key partners, including Microsoft. It did not identify a specific culprit who might be behind the breach or disclose when the hack exactly took place. However,  The New York Times  and  The Washington Post  reported that the FBI has turned over the investigation to its Russian specialists and that the attack is likely the work of  APT29  (or Cozy Bear) — state-sponsored hackers affiliated with Russia's SVR Foreign Intelligence Service — citing unnamed sources. As of writing, the hacking tools have not been exploited in the wild, nor do they ...

Microsoft on Tuesday released fixes for 58 newly discovered security flaws spanning as many as 11 products and services as part of its final  Patch Tuesday of 2020 , effectively bringing their CVE total to 1,250 for the year. Of these 58 patches, nine are rated as Critical, 46 are rated as Important, and three are rated Moderate in severity. The December security release addresses issues in Microsoft Windows, Edge browser, ChakraCore, Microsoft Office, Exchange Server, Azure DevOps, Microsoft Dynamics, Visual Studio, Azure SDK, and Azure Sphere. Fortunately, none of these flaws this month have been reported as publicly known or being actively exploited in the wild. The fixes for December concern a number of remote code execution (RCE) flaws in Microsoft Exchange (CVE-2020-17132), SharePoint (CVE-2020-17118 and CVE-2020-17121), Excel (CVE-2020-17123), and Hyper-V virtualization software (CVE-2020-17095), as well as a patch for a security feature bypass in Kerberos (CVE-2020-16...