Cybersecurity
Public PoC Released for Critical libssh2 CVE-2026-55200 Client-Side SSH Flaw
A public proof-of-concept is now out for CVE-2026-55200, a critical flaw in libssh2 that lets a malicious or compromised SSH server trigger memory corruption on a connecting clien…
Hijacked npm and Go Packages Use VS Code Tasks to Deploy Python Infostealer
Cybersecurity researchers have uncovered two hijacked npm packages and a cluster of Go packages that are designed to deploy a Python-based information stealer on compromised Windo…
Ukraine Says Russian Intelligence Used Fake Support Texts to Steal Messaging Credentials
The Security Service of Ukraine (SSU) said it, together with the U.S. Federal Bureau of Investigation (FBI), uncovered a long-running campaign orchestrated by Russian intelligence…
OpenAI Previews GPT-5.6 Sol With Restricted Access and Stronger Cyber Safeguards
OpenAI on Friday released three versions of GPT-5.6, called Sol, Terra, and Luna, as a limited preview to a small number of companies as part of an ongoing engagement with the U.S…
FBI Warns Russian Intelligence Hackers Target Signal Backup Recovery Keys
The FBI and CISA have updated their March warning about Russian intelligence phishing Signal accounts, and the operators have added a step: they now coax targets into handing over…
New SharkLoader Malware Deploys Cobalt Strike in StrikeShark Cyberattacks
A newly discovered cyber attack campaign has been observed delivering a previously undocumented malware family called SharkLoader that acts as a loader for deploying Cobalt Strike…
Chinese-Speaking APT Deploys New TinyRCT Backdoor in Southeast Asia Campaign
A Chinese-speaking advanced persistent threat (APT) actor has been linked to a new custom backdoor called TinyRCT as part of cyber attacks aimed at government entities and critica…
Amazon Q Developer Flaw Could Let Malicious Repos Run Code via MCP Configs
A high-severity flaw in Amazon Q Developer let a malicious repository run commands and steal a developer's cloud credentials. The path was short: a developer opens the repo, trust…
New Linux pedit COW Exploit Enables Root Access by Poisoning Cached Binaries
A flaw in the Linux kernel's traffic-control subsystem can let a local unprivileged user gain root on affected systems. CVE-2026-46331, nicknamed "pedit COW," is an out-of-bounds …
CISA Adds Exploited PTC Windchill RCE Flaw to KEV as Web Shell Attacks Continue
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a critical remote code execution vulnerability impacting PTC Windchill PDMlink and PTC FlexPLM e…
New DirtyClone Linux Kernel Flaw Lets Local Users Gain Root via Cloned Packets
DirtyClone is a new Linux kernel privilege escalation in the DirtyFrag family. JFrog Security Research published a working exploit walkthrough for the flaw on June 25, the first p…
Guardian Agents: The Next Layer of Identity Governance
AI agents are moving through enterprise environments, inheriting permissions, traversing systems, and executing decisions at machine speed with minimal oversight. The identity inf…
Miasma Malware Targets npm Packages and GitHub Actions in Supply Chain Attack
Cybersecurity researchers have flagged yet another evolution of the supply chain attack linked to the Mini Shai-Hulud, Miasma, and Hades malware family that has compromised a new …
Microsoft Warns of Photo ZIP Phishing Campaign Targeting Hotels with Node.js Implant
An active phishing campaign has been targeting hotel and other hospitality organizations across Europe and Asia since April 2026, using photo-themed ZIP files to drop a Node.js im…
Russia Used Cellebrite on Jailed Activist's iPhone Months After Sales Cutoff
Russian authorities used Cellebrite's UFED forensic tools to break into the iPhone of detained opposition activist Andrey Pivovarov in June 2021, three months after Cellebrite sai…
Google Details Turla's New STOCKSTAY Backdoor Used in Ukraine Espionage Attacks
The Russian state-sponsored threat actor known as Turla has been attributed to a previously undocumented .NET backdoor called STOCKSTAY that has been deployed against government a…
Chrome Ad Blocker with 10M+ Installs Found with Dormant Script Injection Capability
An analysis of a popular Google Chrome ad block extension for YouTube has uncovered the ability to execute arbitrary JavaScript code. According to Island, the extension, named Adb…
ThreatsDay Bulletin: Smart TV Proxyware, 24-Year curl Bug, AI Crime Forums + 13 More Stories
It’s dumb out there again. This week has the usual smell of prod on fire and nobody wanting to admit who left the door open — old creds still working, trusted apps doing sketchy c…
Surviving the Mythos Era: Richard Bejtlich on the Case for NDR
Despite the abundance of telemetry at analysts’ disposal, many security operations teams struggle to answer a few basic questions during incident investigation: What happened? Wha…
New Gaslight macOS Malware Uses Prompt Injection to Disrupt AI-Assisted Analysis
A previously undocumented Rust-based macOS implant and information stealer has been found to embed a prompt injection payload designed to trick a malware analyst's artificial inte…
New Mistic Backdoor Linked to KongTuke in ClickFix and ModeloRAT Campaigns
A new, stealthy backdoor named Mistic has been deployed as part of suspected financially motivated attacks aimed at multiple organizations spanning insurance, education, IT, and p…
Cisco Catalyst SD-WAN Zero-Day CVE-2026-20245 Exploited to Gain Root Access
An unknown threat actor exploited a recently disclosed high-severity security flaw impacting Cisco Catalyst SD-WAN as a zero-day at least two months before it was publicly disclos…
CISA Warns Critical Lantronix EDS5000 Flaw Is Being Actively Exploited
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday warned of active exploitation of a critical security flaw impacting Lantronix EDS5000 Series devices, u…
Amadey and StealC Malware Network Disrupted, 27M Stolen Credentials Recovered
A coordinated law enforcement operation, in partnership with private sector companies, including Bitdefender, Bitsight, ESET, and Microsoft, has resulted in the takedown of crimin…