Latest Cybersecurity News and Articles
29 June 2026
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 recap.
⚡ Threat of the Week
New DirtyClone Linux Kernel Flaw Lets Local
29 June 2026
Indirect prompts hidden in a repository can lead to Claude Code spawning a reverse shell on the developer’s machine.
The post Researchers Demo New Claude Code Attack Using Harmless-Looking Repositories to Hijack Developer Machines appeared first on SecurityWeek.
29 June 2026
The startup’s platform can identify AI agents and provide visibility into their access, behavior, and risks.
The post Straiker Raises $64 Million for AI Security Platform appeared first on SecurityWeek.
29 June 2026
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.
29 June 2026
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 operations, WhatsApp phishing networks, fake gambling platforms, brand-impersonation
29 June 2026
Today’s encrypted data, such as credentials, may no longer remain confidential in the future because the public-key cryptography protecting it will soon be broken by quantum computers. Although no machine today can break elliptic curve cryptography or RSA, quantum hardware is advancing rapidly and will inevitably change how organizations protect their data. Ciphertext and credentials captured by
29 June 2026
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 of them taking place in the second half of the year. Primary targets of these
29 June 2026
A variant of DirtyFrag, the flaw allows unprivileged local users to manipulate the Linux page cache and gain root privileges.
The post ‘DirtyClone’ Linux Kernel Vulnerability Leads to Root Access appeared first on SecurityWeek.
29 June 2026
ChatGPT maker OpenAI said Friday it is restricting the release of its new artificial intelligence model at the request of President Donald Trump’s administration.
The post OpenAI and Anthropic Limit New AI Models to Trump-Approved Customers During Cybersecurity Review appeared first on SecurityWeek.
29 June 2026
UNC5792 and UNC4221 have been targeting US government officials, military leaders, and allied personnel.
The post US Offers $10 Million Bounty for Russian State Hackers as Messaging App Attacks Evolve appeared first on SecurityWeek.
29 June 2026
Microsoft has shut down a long-running malicious extension operation on the Edge Add-ons store that hid its payloads inside ordinary image and font files, then woke up days after install to steal credentials and run ad fraud.
The company calls it StegoAd, a mash-up of steganography and adware, and ties 119 extensions to a single threat actor it says has been active since at least 2021.
29 June 2026
The company says Sol matches competing systems like Mythos Preview while using only a third of the output tokens.
The post OpenAI Unveils GPT-5.6 Sol as Its Most Advanced Cybersecurity AI appeared first on SecurityWeek.
29 June 2026
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 client, with possible code execution. No credentials, no user interaction. The bug affects every release up to and including 1.11.1 and carries a CVSS 4.0 score of 9.2.
libssh2 is a client-side SSH library, not a server.
29 June 2026
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 Windows, Linux, and macOS hosts.
"This attack avoids the most common npm execution paths through lifecycle scripts, perhaps in an attempt to remain 'compatible' with npm v12's security hardenings," JFrog said in a
27 June 2026
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 services to break into the messaging accounts of government officials, military personnel, politicians, and activists in Ukraine, Europe, and the U.S.
The systematic cyber attacks aimed at stealing sensitive
27 June 2026
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. government.
While Sol is the latest flagship model and the most powerful, Terra strikes a balance between efficiency and power, and Luna is fine-tuned for speed and affordability.
"GPT‑5.6 Sol launches with our most
27 June 2026
Threat actors are selling investment scam templates created using the legitimate DCloud Uni-App toolkit.
The post Chinese Framework Powers 200,000 Scam Sites appeared first on SecurityWeek.
26 June 2026
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 their Signal Backup Recovery Key.
Hand it over once, and the attacker can restore the account's backup, read the private and group message history, and take over the account. Worse, the key keeps working.
26 June 2026
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 Beacon on compromised hosts.
Kaspersky, which is tracking the activity under the moniker StrikeShark, said the campaign has targeted a diplomatic organization in Indonesia, government organizations in Taiwan,
26 June 2026
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 critical infrastructure in Southeast Asia.
The activity, particularly aimed at state-owned enterprises in the energy and government sectors, has been attributed to a threat actor called CL-STA-1062, which Palo Alto Networks