Authorities and researchers are sounding the alarm over the active mass exploitation of a high-severity vulnerability in Microsoft SharePoint Server that’s allowing attackers to make off with sensitive company data, including authentication tokens used to access systems inside networks. Researchers said anyone running an on-premises instance of SharePoint …

Researchers recently reported encountering a phishing attack in the wild that bypasses a multifactor authentication scheme based on FIDO (Fast Identity Online), the industry-wide standard being adopted by thousands of sites and enterprises. If true, the attack, reported in a blog post Thursday by security firm Expel, would be …

Researchers from Cisco’s Talos security team have uncovered a malware-as-a-service operator that used public GitHub accounts as a channel for distributing an assortment of malicious software to targets. The use of GitHub gave the malware-as-a-service (MaaS) a reliable and easy-to-use platform that’s greenlit in many enterprise networks …

Researchers from the Google Threat Intelligence Group said that hackers are compromising SonicWall Secure Mobile Access (SMA) appliances, which sit at the edge of enterprise networks and manage and secure access by mobile devices. The targeted devices are end of life, meaning they no longer receive regular updates for …

Hackers are stashing malware in a place that’s largely out of the reach of most defenses—inside domain name system (DNS) records that map domain names to their corresponding numerical IP addresses. The practice allows malicious scripts and early-stage malware to fetch binary files without having to download …

Nvidia is recommending a mitigation for customers of one of its GPU product lines that will degrade performance by up to 10 percent in a bid to protect users from exploits that could let hackers sabotage work projects and possibly cause other compromises. The move comes in response to …

Authorities in Europe have detained five people, including a former Russian professional basketball player, in connection with crime syndicates responsible for ransomware attacks. Until recently, one of the suspects, Daniil Kasatkin, played for MBA Moscow, a basketball team that’s part of the VTB United League, which includes teams …

Extensions installed on almost 1 million devices have been overriding key security protections to turn browsers into engines that scrape websites on behalf of a paid service, a researcher said. The 245 extensions, available for Chrome, Firefox, and Edge, have racked up nearly 909,000 downloads, John Tuckner of …

A critical vulnerability allowing hackers to bypass multifactor authentication in network management devices made by Citrix has been actively exploited for more than a month, researchers said. The finding is at odds with advisories from the vendor saying there is no evidence of in-the-wild exploitation. Tracked as CVE-2025-5777, the …

Starting today, Google is implementing a change that will enable its Gemini AI engine to interact with third-party apps, such as WhatsApp, even when users previously configured their devices to block such interactions. Users who don't want their previous settings to be overridden may have to take action. An …

The ransomware group linked to the recent cyberattacks on UK retailers Marks and Spencer, Harrods, and the Co-Op has begun a turf war with its rivals, triggering a battle within the industry that could bring more hacks and further fallout for corporate victims. DragonForce, a group of largely Russian-speaking …

The maker of a phone app that is advertised as providing a stealthy means for monitoring all activities on an Android device spilled email addresses, plain-text passwords, and other sensitive data belonging to 62,000 users, a researcher discovered recently. A security flaw in the app, branded Catwatchful, allowed …

AT&T is rolling out a protection that prevents unauthorized changes to mobile accounts as the carrier attempts to fight a costly form of account hijacking that occurs when a scammer swaps out the SIM card belonging to the account holder. The technique, known as SIM swapping or port-out …

The Sinaloa drug cartel in Mexico hacked the phone of an FBI official investigating kingpin Joaquín “El Chapo” Guzmán as part of a surveillance campaign “to intimidate and/or kill potential sources or cooperating witnesses,” according to a recently published report by the Justice Department. The report, which cited …

Hackers are exploiting a maximum-severity vulnerability that has the potential to give them complete control over thousands of servers, many of which handle mission-critical tasks inside data centers, the US Cybersecurity and Infrastructure Security Agency is warning. The vulnerability, carrying a severity rating of 10 out of a possible …

Ubuntu users could see up to a 20 percent boost in graphics performance on Intel-based systems under a change that will turn off security mitigations for blunting a class of attacks known as Spectre. Spectre, you may recall, came to public notice in 2018. Spectre attacks are based on …

Hackers suspected of working on behalf of the Chinese government exploited a maximum-severity vulnerability, which had received a patch 16 months earlier, to compromise a telecommunications provider in Canada, officials from that country and the US said Monday. “The Cyber Centre is aware of malicious cyber activities currently targeting …

Large-scale attacks designed to bring down Internet services by sending them more traffic than they can process keep getting bigger, with the largest one yet, measured at 7.3 terabits per second, being reported Friday by Internet security and performance provider Cloudflare. The 7.3Tbps attack amounted to 37 …

The Israel-linked hacker group known as Predatory Sparrow has carried out some of the most disruptive and destructive cyberattacks in history, twice disabling thousands of gas station payment systems across Iran and once even setting a steel mill in the country on fire. Now, in the midst of a …

Tech support scammers have devised a method to inject their fake phone numbers into webpages when a target's web browser visits official sites for Apple, PayPal, Netflix, and other companies. The ruse, outlined in a post on Wednesday from security firm Malwarebytes, threatens to trick users into calling the …

Cybersecurity practitioners are voicing concerns over a recent executive order issued by the White House that guts requirements for: securing software the government uses, punishing people who compromise sensitive networks, preparing new encryption schemes that will withstand attacks from quantum computers, and other existing controls. The executive order (EO …

Subscribers in Southern California of Spectrum’s Internet service experienced outages over the weekend following what company officials said was an attempted theft of copper lines located in Van Nuys, a suburb located 20 miles from downtown Los Angeles. The people behind the incident thought they were targeting copper …

Apple this week provided a glimpse into a feature that solves one of the biggest drawbacks of passkeys, the industry-wide standard for website and app authentication that isn't susceptible to credential phishing and other attacks targeting passwords. The import/export feature, which Apple demonstrated at this week’s Worldwide …

Researchers have unearthed two publicly available exploits that completely evade protections offered by Secure Boot, the industry-wide mechanism for ensuring devices load only secure operating system images during the boot-up process. Microsoft is taking action to block one exploit and allowing the other one to remain a viable threat …

Millions of low-cost devices for media streaming, in-vehicle entertainment, and video projection are infected with malware that turns consumer networks into platforms for distributing malware, concealing nefarious communications, and performing other illicit activities, the FBI has warned. The malware infecting these devices, known as BadBox, is based on Triada …