Cybersecurity Center
Cybersecurity News
- (Thursday December 18, 2025)
This week鈥檚 ThreatsDay Bulletin tracks how attackers keep reshaping old tools and finding new angles in familiar systems. Small changes in tactics are stacking up fast, and each one hints at where the next big breach could come from. From shifting infrastructures to clever social hooks, the week鈥檚 activity shows just how fluid the threat landscape has become. Here鈥檚 the full rundown of what (HackerNews) - (Thursday December 18, 2025)
Threat actors with ties to the Democratic People's Republic of Korea (DPRK or North Korea) have been instrumental in driving a surge in global cryptocurrency theft in 2025, accounting for at least $2.02 billion out of more than $3.4 billion stolen from January through early December. The figure represents a 51% increase year-over-year and $681 million more than 2024, when the threat actors stole (HackerNews) - (Thursday December 18, 2025)
Within the past year, artificial intelligence copilots and agents have quietly permeated the SaaS applications businesses use every day. Tools like Zoom, Slack, Microsoft 365, Salesforce, and ServiceNow now come with built-in AI assistants or agent-like features. Virtually every major SaaS vendor has rushed to embed AI into their offerings. The result is an explosion of AI capabilities across (HackerNews) - (Thursday December 18, 2025)
The North Korean threat actor known as Kimsuky has been linked to a new campaign that distributes a new variant of Android malware called DocSwap via QR codes hosted on phishing sites mimicking Seoul-based logistics firm CJ Logistics (formerly CJ Korea Express). "The threat actor leveraged QR codes and notification pop-ups to lure victims into installing and executing the malware on their mobile (HackerNews) - (Thursday December 18, 2025)
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a critical flaw impacting ASUS Live Update to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The vulnerability, tracked as CVE-2025-59374 (CVSS score: 9.3), has been described as an "embedded malicious code vulnerability" introduced by means of a supply chain compromise (HackerNews) - (Thursday December 18, 2025)
Cisco has alerted users to a maximum-severity zero-day flaw in Cisco AsyncOS software that has been actively exploited by a China-nexus advanced persistent threat (APT) actor codenamed UAT-9686 in attacks targeting Cisco Secure Email Gateway and Cisco Secure Email and Web Manager. The networking equipment major said it became aware of the intrusion campaign on December 10, 2025, and that it (HackerNews) - (Wednesday December 17, 2025)
SonicWall has rolled out fixes to address a security flaw in Secure Mobile Access (SMA) 100 series appliances that it said has been actively exploited in the wild. The vulnerability, tracked as CVE-2025-40602 (CVSS score: 6.6), concerns a case of local privilege escalation that arises as a result of insufficient authorization in the appliance management console (AMC). It affects the following (HackerNews) - (Wednesday December 17, 2025)
A new distributed denial-of-service (DDoS) botnet known as Kimwolf has enlisted a massive army of no less than 1.8 million infected devices comprising Android-based TVs, set-top boxes, and tablets, and may be associated with another botnet known as AISURU, according to findings from QiAnXin XLab. "Kimwolf is a botnet compiled using the NDK [Native Development Kit]," the company said in a report (HackerNews) - (Wednesday December 17, 2025)
The Russian state-sponsored threat actor known as APT28 has been attributed to what has been described as a "sustained" credential-harvesting campaign targeting users of UKR[.]net, a webmail and news service popular in Ukraine. The activity, observed by Recorded Future's Insikt Group between June 2024 and April 2025, builds upon prior findings from the cybersecurity company in May 2024 that (HackerNews) - (Wednesday December 17, 2025)
The threat actor linked to Operation ForumTroll has been attributed to a fresh set of phishing attacks targeting individuals within Russia, according to Kaspersky. The Russian cybersecurity vendor said it detected the new activity in October 2025. The origins of the threat actor are presently unknown. "While the spring cyberattacks focused on organizations, the fall campaign honed in on (HackerNews) - (Wednesday December 17, 2025)
Modern security teams often feel like they鈥檙e driving through fog with failing headlights. Threats accelerate, alerts multiply, and SOCs struggle to understand which dangers matter right now for their business. Breaking out of reactive defense is no longer optional. It鈥檚 the difference between preventing incidents and cleaning up after them. Below is the path from reactive firefighting to a (HackerNews) - (Wednesday December 17, 2025)
The threat actor known as Jewelbug has been increasingly focusing on government targets in Europe since July 2025, even as it continues to attack entities located in Southeast Asia and South America. Check Point Research is tracking the cluster under the name Ink Dragon. It's also referenced by the broader cybersecurity community under the names CL-STA-0049, Earth Alux, and REF7707. The (HackerNews) - (Wednesday December 17, 2025)
A new campaign named GhostPoster has leveraged logo files associated with 17 Mozilla Firefox browser add-ons to embed malicious JavaScript code designed to hijack affiliate links, inject tracking code, and commit click and ad fraud. The extensions have been collectively downloaded over 50,000 times, according to Koi Security, which discovered the campaign. The add-ons are no longer available. (HackerNews) - (Tuesday December 16, 2025)
An ongoing campaign has been observed targeting Amazon Web Services (AWS) customers using compromised Identity and Access Management (IAM) credentials to enable cryptocurrency mining. The activity, first detected by Amazon's GuardDuty managed threat detection service and its automated security monitoring systems on November 2, 2025, employs never-before-seen persistence techniques to hamper (HackerNews) - (Tuesday December 16, 2025)
Cybersecurity researchers have discovered a new malicious NuGet package that typosquats and impersonates the popular .NET tracing library and its author to sneak in a cryptocurrency wallet stealer. The malicious package, named "Tracer.Fody.NLog," remained on the repository for nearly six years. It was published by a user named "csnemess" on February 26, 2020. It masquerades as "Tracer.Fody," (HackerNews) - (Tuesday December 16, 2025)
Direct navigation -- the act of visiting a website by manually typing a domain name in a web browser -- has never been riskier: A new study finds the vast majority of "parked" domains -- mostly expired or dormant domain names, or common misspellings of popular websites -- are now configured to redirect visitors to sites that foist scams and malware. (KrebsOnSecurity) - (Tuesday December 16, 2025)
Amazon's threat intelligence team has disclosed details of a "years-long" Russian state-sponsored campaign that targeted Western critical infrastructure between 2021 and 2025. Targets of the campaign included energy sector organizations across Western nations, critical infrastructure providers in North America and Europe, and entities with cloud-hosted network infrastructure. The activity has (HackerNews) - (Tuesday December 16, 2025)
AI-assisted coding and AI app generation platforms have created an unprecedented surge in software development. Companies are now facing rapid growth in both the number of applications and the pace of change within those applications. Security and privacy teams are under significant pressure as the surface area they must cover is expanding quickly while their staffing levels remain largely (HackerNews) - (Tuesday December 16, 2025)
Threat actors have begun to exploit two newly disclosed security flaws in Fortinet FortiGate devices, less than a week after public disclosure. Cybersecurity company Arctic Wolf said it observed active intrusions involving malicious single sign-on (SSO) logins on FortiGate appliances on December 12, 2025. The attacks exploit two critical authentication bypasses (CVE-2025-59718 and CVE-2025-59719 (HackerNews) - (Tuesday December 16, 2025)
The security vulnerability known as React2Shell is being exploited by threat actors to deliver malware families like KSwapDoor and ZnDoor, according to findings from Palo Alto Networks Unit 42 and NTT Security. "KSwapDoor is a professionally engineered remote access tool designed with stealth in mind," Justin Moore, senior manager of threat intel research at Palo Alto Networks Unit 42, said in a (HackerNews) - (Tuesday December 16, 2025)
Google has announced that it's discontinuing its dark web report tool in February 2026, less than two years after it was launched as a way for users to monitor if their personal information is found on the dark web. To that end, scans for new dark web breaches will be stopped on January 15, 2026, and the feature will cease to exist effective February 16, 2026. "While the report offered general (HackerNews) - (Monday December 15, 2025)
A Google Chrome extension with a "Featured" badge and six million users has been observed silently gathering every prompt entered by users into artificial intelligence (AI)-powered chatbots like OpenAI ChatGPT, Anthropic Claude, Microsoft Copilot, DeepSeek, Google Gemini, xAI Grok, Meta AI, and Perplexity. The extension in question is Urban VPN Proxy, which has a 4.7 rating on the Google Chrome (HackerNews) - (Monday December 15, 2025)
Multiple security vulnerabilities have been disclosed in the open-source private branch exchange (PBX) platform FreePBX, including a critical flaw that could result in an authentication bypass under certain configurations. The shortcomings, discovered by Horizon3.ai and reported to the project maintainers on September 15, 2025, are listed below - CVE-2025-61675 (CVSS score: 8.6) - Numerous (HackerNews) - (Monday December 15, 2025)
If you use a smartphone, browse the web, or unzip files on your computer, you are in the crosshairs this week. Hackers are currently exploiting critical flaws in the daily software we all rely on鈥攁nd in some cases, they started attacking before a fix was even ready. Below, we list the urgent updates you need to install right now to stop these active threats. 鈿� Threat of the Week Apple and (HackerNews) - (Monday December 15, 2025)
In early December 2025, security researchers exposed a cybercrime campaign that had quietly hijacked popular Chrome and Edge browser extensions on a massive scale. A threat group dubbed ShadyPanda spent seven years playing the long game, publishing or acquiring harmless extensions, letting them run clean for years to build trust and gain millions of installs, then suddenly flipping them into (HackerNews) - (Monday December 15, 2025)
Cybersecurity researchers have disclosed details of an active phishing campaign that's targeting a wide range of sectors in Russia with phishing emails that deliver Phantom Stealer via malicious ISO optical disc images. The activity, codenamed Operation MoneyMount-ISO by Seqrite Labs, has primarily singled out finance and accounting entities, with those in the procurement, legal, payroll (HackerNews) - (Monday December 15, 2025)
The pro-Russian hacktivist group known as CyberVolk (aka GLORIAMIST) has resurfaced with a new ransomware-as-a-service (RaaS) offering called VolkLocker that suffers from implementation lapses in test artifacts, allowing users to decrypt files without paying an extortion fee. According to SentinelOne, VolkLocker (aka CyberVolk 2.x) emerged in August 2025 and is capable of targeting both Windows (HackerNews) - (Saturday December 13, 2025)
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added a high-severity flaw impacting Sierra Wireless AirLink ALEOS routers to its Known Exploited Vulnerabilities (KEV) catalog, following reports of active exploitation in the wild. CVE-2018-4063 (CVSS score: 8.8/9.9) refers to an unrestricted file upload vulnerability that could be exploited to achieve remote code (HackerNews) - (Saturday December 13, 2025)
Apple on Friday released security updates for iOS, iPadOS, macOS, tvOS, watchOS, visionOS, and its Safari web browser to address two security flaws that it said have been exploited in the wild, one of which is the same flaw that was patched by Google in Chrome earlier this week. The vulnerabilities are listed below - CVE-2025-43529 (CVSS score: N/A) - A use-after-free vulnerability in WebKit (HackerNews) - (Friday December 12, 2025)
Cybersecurity researchers are calling attention to a new campaign that's leveraging GitHub-hosted Python repositories to distribute a previously undocumented JavaScript-based Remote Access Trojan (RAT) dubbed PyStoreRAT. "These repositories, often themed as development utilities or OSINT tools, contain only a few lines of code responsible for silently downloading a remote HTA file and executing (HackerNews) - (Friday December 12, 2025)
Cybersecurity researchers have documented four new phishing kits named BlackForce, GhostFrame, InboxPrime AI, and Spiderman that are capable of facilitating credential theft at scale. BlackForce, first detected in August 2025, is designed to steal credentials and perform Man-in-the-Browser (MitB) attacks to capture one-time passwords (OTPs) and bypass multi-factor authentication (MFA). The kit (HackerNews) - (Friday December 12, 2025)
The browser has become the main interface to GenAI for most enterprises: from web-based LLMs and copilots, to GenAI鈥憄owered extensions and agentic browsers like ChatGPT Atlas. Employees are leveraging the power of GenAI to draft emails, summarize documents, work on code, and analyze data, often by copying/pasting sensitive information directly into prompts or uploading files. Traditional (HackerNews) - (Friday December 12, 2025)
The React team has released fixes for two new types of flaws in React Server Components (RSC) that, if successfully exploited, could result in denial-of-service (DoS) or source code exposure. The team said the issues were found by the security community while attempting to exploit the patches released for CVE-2025-55182 (CVSS score: 10.0), a critical bug in RSC that has since been weaponized in (HackerNews) - (Friday December 12, 2025)
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has urged federal agencies to patch the recent React2Shell vulnerability by December 12, 2025, amid reports of widespread exploitation. The critical vulnerability, tracked as CVE-2025-55182 (CVSS score: 10.0), affects the React Server Components (RSC) Flight protocol. The underlying cause of the issue is an unsafe deserialization (HackerNews) - (Friday December 12, 2025)
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a high-severity security flaw impacting OSGeo GeoServer to its Known Exploited Vulnerabilities (KEV) catalog, based on evidence of active exploitation in the wild. The vulnerability in question is CVE-2025-58360 (CVSS score: 8.2), an unauthenticated XML External Entity (XXE) flaw that affects all versions prior to (HackerNews) - (Thursday December 11, 2025)
This week鈥檚 cyber stories show how fast the online world can turn risky. Hackers are sneaking malware into movie downloads, browser add-ons, and even software updates people trust. Tech giants and governments are racing to plug new holes while arguing over privacy and control. And researchers keep uncovering just how much of our digital life is still wide open. The new Threatsday Bulletin (HackerNews) - (Thursday December 11, 2025)
Cybersecurity researchers have disclosed details of a new fully-featured Windows backdoor called NANOREMOTE that uses the Google Drive API for command-and-control (C2) purposes. According to a report from Elastic Security Labs, the malware shares code similarities with another implant codenamed FINALDRAFT (aka Squidoor) that employs Microsoft Graph API for C2. FINALDRAFT is attributed to a (HackerNews) - (Thursday December 11, 2025)
As enterprises refine their strategies for handling Non-Human Identities (NHIs), Robotic Process Automation (RPA) has become a powerful tool for streamlining operations and enhancing security. However, since RPA bots have varying levels of access to sensitive information, enterprises must be prepared to mitigate a variety of challenges. In large organizations, bots are starting to outnumber (HackerNews) - (Thursday December 11, 2025)
An advanced persistent threat (APT) known as WIRTE has been attributed to attacks targeting government and diplomatic entities across the Middle East with a previously undocumented malware suite dubbed AshTag since 2020. Palo Alto Networks Unit 42 is tracking the activity cluster under the name Ashen Lepus. Artifacts uploaded to the VirusTotal platform show that the threat actor has trained its (HackerNews) - (Thursday December 11, 2025)
A high-severity unpatched security vulnerability in Gogs has come under active exploitation, with more than 700 compromised instances accessible over the internet, according to new findings from Wiz. The flaw, tracked as CVE-2025-8110 (CVSS score: 8.7), is a case of file overwrite in the file update API of the Go-based self-hosted Git service. A fix for the issue is said to be currently in the (HackerNews) - (Thursday December 11, 2025)
Google on Wednesday shipped security updates for its Chrome browser to address three security flaws, including one it said has come under active exploitation in the wild. The vulnerability, rated high in severity, is being tracked under the Chromium issue tracker ID "466192044." Unlike other disclosures, Google has opted to keep information about the CVE identifier, the affected component, and (HackerNews) - (Thursday December 11, 2025)
Huntress is warning of a new actively exploited vulnerability in Gladinet's CentreStack and Triofox products stemming from the use of hard-coded cryptographic keys that have affected nine organizations so far. "Threat actors can potentially abuse this as a way to access the web.config file, opening the door for deserialization and remote code execution," security researcher Bryan Masters said. (HackerNews) - (Wednesday December 10, 2025)
React2Shell continues to witness heavy exploitation, with threat actors leveraging the maximum-severity security flaw in React Server Components (RSC) to deliver cryptocurrency miners and an array of previously undocumented malware families, according to new findings from Huntress. This includes a Linux backdoor called PeerBlight, a reverse proxy tunnel named CowTunnel, and a Go-based (HackerNews) - (Wednesday December 10, 2025)
New research has uncovered exploitation primitives in the .NET Framework that could be leveraged against enterprise-grade applications to achieve remote code execution. WatchTowr Labs, which has codenamed the "invalid cast vulnerability" SOAPwn, said the issue impacts Barracuda Service Center RMM, Ivanti Endpoint Manager (EPM), and Umbraco 8. But the number of affected vendors is likely to be (HackerNews) - (Wednesday December 10, 2025)
Three security vulnerabilities have been disclosed in the Peripheral Component Interconnect Express (PCIe) Integrity and Data Encryption (IDE) protocol specification that could expose a local attacker to serious risks. The flaws impact PCIe Base Specification Revision 5.0 and onwards in the protocol mechanism introduced by the IDE Engineering Change Notice (ECN), according to the PCI Special (HackerNews) - (Wednesday December 10, 2025)
Cloud security is changing. Attackers are no longer just breaking down the door; they are finding unlocked windows in your configurations, your identities, and your code. Standard security tools often miss these threats because they look like normal activity. To stop them, you need to see exactly how these attacks happen in the real world. Next week, the Cortex Cloud team at Palo Alto Networks (HackerNews) - (Wednesday December 10, 2025)
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a security flaw impacting the WinRAR file archiver and compression utility to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The vulnerability, tracked as CVE-2025-6218 (CVSS score: 7.8), is a path traversal bug that could enable code execution. However, for exploitation (HackerNews) - (Wednesday December 10, 2025)
Microsoft closed out 2025 with patches for 56 security flaws in various products across the Windows platform, including one vulnerability that has been actively exploited in the wild. Of the 56 flaws, three are rated Critical, and 53 are rated Important in severity. Two other defects are listed as publicly known at the time of the release. These include 29 privilege escalation, 18 remote code (HackerNews) - (Wednesday December 10, 2025)
Fortinet, Ivanti, and SAP have moved to address critical security flaws in their products that, if successfully exploited, could result in an authentication bypass and code execution. The Fortinet vulnerabilities affect FortiOS, FortiWeb, FortiProxy, and FortiSwitchManager and relate to a case of improper verification of a cryptographic signature. They are tracked as CVE-2025-59718 and (HackerNews) - (Tuesday December 09, 2025)
Microsoft today pushed updates to fix at least 56 security flaws in its Windows operating systems and supported software. This final Patch Tuesday of 2025 tackles one zero-day bug that is already being exploited, as well as two publicly disclosed vulnerabilities. (KrebsOnSecurity) - (Tuesday December 09, 2025)
Threat actors with ties to North Korea have likely become the latest to exploit the recently disclosed critical React2Shell security flaw in React Server Components (RSC) to deliver a previously undocumented remote access trojan dubbed EtherRAT. "EtherRAT leverages Ethereum smart contracts for command-and-control (C2) resolution, deploys five independent Linux persistence mechanisms, and (HackerNews) - (Tuesday December 09, 2025)
Four distinct threat activity clusters have been observed leveraging a malware loader known as CastleLoader, strengthening the previous assessment that the tool is offered to other threat actors under a malware-as-a-service (MaaS) model. The threat actor behind CastleLoader has been assigned the name GrayBravo by Recorded Future's Insikt Group, which was previously tracking it as TAG-150. The (HackerNews) - (Saturday December 06, 2025)
A sprawling academic cheating network turbocharged by Google Ads that has generated nearly $25 million in revenue has curious connections to a Kremlin-connected oligarch whose Russian university builds drones for Russia's war against Ukraine. (KrebsOnSecurity) - (Thursday December 04, 2025)
China-based phishing groups blamed for non-stop scam SMS messages about a supposed wayward package or unpaid toll fee are promoting a new offering, just in time for the holiday shopping season: Phishing kits for mass-creating fake but convincing e-commerce websites that convert customer payment card data into mobile wallets from Apple and Google. Experts say these same phishing groups also are now using SMS lures that promise unclaimed tax refunds and mobile rewards points. (KrebsOnSecurity) - (Wednesday November 26, 2025)
A prolific cybercriminal group that calls itself "Scattered LAPSUS$ Hunters" made headlines regularly this year by stealing data from and publicly mass extorting dozens of major corporations. But the tables seem to have turned somewhat for "Rey," the moniker chosen by the technical operator and public face of the hacker group: Earlier this week, Rey confirmed his real life identity and agreed to an interview after KrebsOnSecurity tracked him down and contacted his father. (KrebsOnSecurity) - (Monday November 24, 2025)
On the surface, the Superbox media streaming devices for sale at retailers like BestBuy and Walmart may seem like a steal: They offer unlimited access to more than 2,200 pay-per-view and streaming services like Netflix, ESPN and Hulu, all for a one-time fee of around $400. But security experts warn these TV boxes require intrusive software that forces the user's network to relay Internet traffic for others, traffic that is often tied to cybercrime activity such as advertising fraud and account takeovers. (KrebsOnSecurity) - (Thursday November 20, 2025)
In March 2024, Mozilla said it was winding down its collaboration with Onerep -- an identity protection service offered with the Firefox web browser that promises to remove users from hundreds of people-search sites -- after KrebsOnSecurity revealed Onerep's founder had created dozens of people-search services and was continuing to operate at least one of them. Sixteen months later, however, Mozilla is still promoting Onerep. This week, Mozilla announced their partnership with Onerep will officially end next month. (KrebsOnSecurity) - (Wednesday November 19, 2025)
An intermittent outage at Cloudflare on Tuesday briefly knocked many of the Internet's top destinations offline. Some affected Cloudflare customers were able to pivot away from the platform temporarily so that visitors could still access their websites. But security experts say doing so may have also triggered an impromptu network penetration test for organizations that have come to rely on Cloudflare to block many types of abusive and malicious traffic. (KrebsOnSecurity) - (Sunday November 16, 2025)
Microsoft this week pushed security updates to fix more than 60 vulnerabilities in its Windows operating systems and supported software, including at least one zero-day bug that is already being exploited. Microsoft also fixed a glitch that prevented some Windows 10 users from taking advantage of an extra year of security updates, which is nice because the zero-day flaw and other critical weaknesses patched today affect all versions of Windows, including Windows 10. (KrebsOnSecurity) - (Thursday November 13, 2025)
Google is suing more than two dozen unnamed individuals allegedly involved in peddling a popular China-based mobile phishing service that helps scammers impersonate hundreds of trusted brands, blast out text message lures, and convert phished payment card data into mobile wallets from Apple and Google. (KrebsOnSecurity)
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