STONE-KNIGHT SECURITY

CISA confirmed on Monday that ransomware gangs are now exploiting a Microsoft Defender privilege escalation vulnerability, dubbed BlueHammer, that has previously been abused in zero-day attacks. [...]

A critical vulnerability in Progress Kemp LoadMaster can let an unauthenticated attacker execute arbitrary commands as root on the appliance by sending a crafted request to its API. The flaw, tracked as CVE-2026-8037, carries a CVSS score of 9.8 according to ZDI. A patch is available. If you run LoadMaster with the…

A critical security flaw impacting Oracle E-Business Suite has come under active exploitation in the wild, according to Defused Cyber. The vulnerability, tracked as CVE-2026-46817 (CVSS score: 9.8), refers to an improper privilege management and authentication flaw in Oracle Payments that could be abused to take over…

The infostealer was delivered via CVE-2026-48558, a critical authentication bypass vulnerability in SimpleHelp, targeting credentials linking development and admin environments to wider enterprise systems.

Nissan is warning that it suffered a data breach affecting current and former employees after threat actors exploited an Oracle PeopleSoft vulnerability in data theft attacks previously linked to the ShinyHunters extortion group. [...]

The National Association of Insurance Commissioners (NAIC) says the ShinyHunters extortion group stole only publicly available data, outdated logs, and configuration files after breaching its systems by exploiting a zero-day vulnerability in an Oracle PeopleSoft server. [...]

Hackers are exploiting a recently disclosed critical vulnerability (CVE-2026-48558) in SimpleHelp to deploy Djinn Stealer, a previously undocumented cross-platform information stealer targeting Windows, macOS, and Linux. [...]

Attackers have begun exploiting a critical vulnerability (CVE-2026-46817) in the Oracle E-Business Suite (EBS) financial application, according to threat intelligence company Defused. [...]

Added to KEV 2026-06-29. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-25. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-25. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-23. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-23. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-23. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-23. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-18. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-16. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-15. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

The Blackfield ransomware gang is asking for a $2 million ransom from Nidec Corporation, a large Japanese manufacturer of electronic components for automotive and computing applications. [...]

Only a handful of the 100 organizations targeted in the PeopleSoft campaign have been confirmed. The post Nissan Employee Data Breached in Oracle PeopleSoft Hack appeared first on SecurityWeek .

The threat actor is focused on collecting credentials, SSH keys, cryptocurrency wallets, and development tooling. The post Critical SimpleHelp Vulnerability Exploited for Malware Delivery appeared first on SecurityWeek .

Nation-state attackers breach water systems through weak passwords, exposed PLCs, and poor segmentation — not sophisticated malware.

Russia-linked hacking groups tracked as UNC5792 and UNC4221 have socially engineered their way into the messaging accounts of government officials.

The China-aligned espionage group Mustang Panda is running two campaigns against the Indian government and hydropower targets, deploying new malware and turning a legitimate cloud service into its command channel. Acronis Threat Research Unit found active compromises inside Indian government networks, including…

This week was a reminder that attackers do not always need big tricks. One small mistake, one old access path, one missed patch, and suddenly the door is open. The noise is not all noise, either. Forums are talking, researchers are finding easy cracks, and defenders have more cleanup waiting. Here’s the full Monday…

New findings unearthed by Infoblox show that more than 236,000 websites are using investment scam templates built using a legitimate Chinese open-source, cross-platform application development framework called DCloud Uni-App. The templates power bogus cryptocurrency exchanges, multi-language pig-butchering…

A Russian advanced persistent threat (APT) group has continued to evolve and expand its malware arsenal as part of its ongoing cyber onslaught against Ukraine throughout 2025. Slovakian cybersecurity company ESET said it observed 35 distinct spear-phishing campaigns mounted by Gamaredon against new targets, with most…

Rising threats from third-party actors are forcing institutions to play defense to protect student data from ransomware and other attacks.

For the past four years, a sprawling Android-based botnet called Popa has forced millions of consumer TV boxes to relay Internet traffic linked to advertising fraud, account takeovers, and mass data-scraping efforts. This week, researchers from multiple security firms concluded that the Popa botnet is linked to…

A cybercrime group known as The Gentlemen has emerged as the second most active ransomware gang by victim count, rapidly attracting a talented pool of hackers through an aggressive recruitment strategy that promises affiliates 90 percent of any ransom paid by victims. This post examines clues pointing to a real life…

Canadian authorities on Wednesday arrested a 23-year-old Ottawa man on suspicion of building and operating Kimwolf, a fast spreading Internet-of-Things botnet that enslaved millions of devices for use in a series of massive distributed denial-of-service (DDoS) attacks over the past six months. KrebsOnSecurity…

The ShinyHunters extortion group claims to have stolen 3.1 TB of data from the organization. The post Insurance Regulators Group NAIC Hit in Oracle PeopleSoft Hack appeared first on SecurityWeek .

Lawmakers in both houses of Congress are demanding answers from the U.S. Cybersecurity & Infrastructure Security Agency (CISA) after KrebsOnSecurity reported this week that a CISA contractor intentionally published AWS GovCloud keys and a vast trove of other agency secrets on a public GitHub account. The inquiry…

Until this past weekend, a contractor for the Cybersecurity & Infrastructure Security Agency (CISA) maintained a public GitHub repository that exposed credentials to several highly privileged AWS GovCloud accounts and a large number of internal CISA systems. Security experts said the public archive included files…

Microsoft has introduced a new Teams admin policy that allows organizers to prevent third-party bots from joining meetings without approval. [...]

As cybersecurity platforms embrace agentic AI, organizations must balance detection performance against the escalating costs of token consumption, deployment architecture, and AI credits. The post The AI Token Costs That Can Break Cybersecurity appeared first on SecurityWeek .

Kali Linux 2026.2, the second release of the year, is now available for download, featuring 9 new tools and numerous Kali NetHunter improvements. [...]

Two researchers have found six security flaws in AirDrop and Quick Share, the wireless features that beam files between nearby devices with no cables or shared network. An attacker within wireless range, with just a laptop and no prior connection, can crash the sharing service on a Mac or iPhone set to receive from…

Convince an AI browser that it is playing a game, and it can hand over your login details. That is the finding behind BioShocking, a technique from security firm LayerX that tricked six AI browsers and assistants into copying a user's credentials and sending them to an attacker. The targets included OpenAI's ChatGPT…

Apple on Monday released security updates for iOS, macOS, and the Safari web browser to address over three dozen flaws, including four vulnerabilities in WebKit that were discovered using artificial intelligence (AI) tools like Anthropic Claude and OpenAI Codex Security. The WebKit vulnerabilities are listed below -…

Quantifind will accelerate international expansion and extend its platform’s localized risk intelligence capabilities. The post Quantifind Raises $200 Million for AI-Native Risk Intelligence appeared first on SecurityWeek .

CISA has published an advisory to inform organizations about three vulnerabilities found by a researcher in Daktronics controllers. The post New Controller Flaws Expose Highway Signs and Billboards to Remote Hacking appeared first on SecurityWeek .

One critical vulnerability, among many discovered by a researcher, could have allowed anyone to walk in and take over a national government portal.

Does life feel Orwellian sometimes? One researcher has a solution for you: graphic tees that confuse the neural networks in surveillance cameras.

Police must get a warrant to request geofence data involving individual cellphones, the U.S. Supreme Court ruled in what represents a victory for privacy advocates.

Microsoft has found a malicious Chrome extension that posed as the AI search engine Perplexity and quietly logged what people searched for. It routed every query and every character typed into the address bar through an attacker-controlled server before redirecting users to real results. Microsoft says Google removed…

WhatsApp is finally allowing users to reserve usernames, a privacy feature that lets them hide their phone numbers from people not in their contact list. [...]

Microsoft has extended Windows Server 2022 hotpatching until October 2027, one year after the mainstream end date of October 2026. [...]

The World Cup’s organizing body, FIFA, helped identify hundreds of domains taken down in an action organized by the U.S., along with the help of U.S. broadcaster NBC Universal and other entities.

WhatsApp on Monday officially announced the start of global reservations of usernames with an aim to protect the privacy of more than three billion users on the messaging platform. The optional feature is designed to help users connect with someone on the service through usernames, as opposed to directly sharing…

An optional ‘username key’ adds another layer by requiring a secondary credential before someone can message users. The post WhatsApp Rolling Out Username Feature to Bolster Phone Number Privacy appeared first on SecurityWeek .

The U.S. Department of State is offering up to $10 million for information that helps identify or locate members of the UNC5792 and UNC4221 hacker groups, which are linked to Russia's intelligence and military services. [...]