Cybersecurity News

YARA-X 1.17.0 Release, (Sun, May 31st)

YARA-X&&#x23&#x3b;x26&#x3b;&#x23&#x3b;39&#x3b;s 1.17.0 release brings 5 improvements (several performance improvements) and 1 bugfix.

WP Maps Pro bug exploited to create admin accounts on WordPress sites

Hackers are targeting WordPress websites running a vulnerable version of the WP Maps Pro plugin, which allows creating rogue administrator accounts without authentication. [...]

Dutch Authorities Dismantle Botnet Linked to 17 Million Infected Devices

Dutch authorities have announced the takedown of a botnet that enslaved millions of infected devices, including computers, tablets, smartphones, and IoT devices, to carry out malicious attacks. The bot network, per the …

Palo Alto GlobalProtect VPN auth bypass flaw now exploited in attacks

Palo Alto Networks is warning that hackers are now exploiting a PAN-OS GlobalProtect authentication bypass flaw, tracked as CVE-2026-0257, in attacks attempting to breach corporate networks. [...]

New CIFSwitch Linux flaw gives root on multiple distributions

A newly discovered local privilege escalation vulnerability dubbed 'CIFSwitch' in the Linux kernel could allow attackers to forge CIFS authentication key descriptions, abuse the kernel's key request mechanism, and gain r…

PAN-OS GlobalProtect Authentication Bypass (CVE-2026-0257) Under Active Exploitation

Palo Alto Networks has warned that a recently disclosed medium-severity security flaw impacting PAN-OS and Prisma Access has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-0257 (CVSS …

ChatGPT share links abused to host fake outage pages to deliver malware

Threat actors are abusing ChatGPT's content-sharing feature to display fake OpenAI outage pages that direct users to download malware disguised as the ChatGPT desktop application. [...]

California AG sues 23andMe over 2023 breach exposing health data

California Attorney General Rob Bonta filed a lawsuit against 23andMe, now Chrome Holding Co., over the company's failure to protect sensitive customer genetic and personal information. [...]

ChatGPhish Vulnerability Turns ChatGPT Web Summaries Into a Phishing Surface

Cybersecurity researchers have disclosed details of a vulnerability in OpenAI ChatGPT that leverages the artificial intelligence (AI) assistant's implicit trust in Markdown links and images to trigger prompt injections a…

Attackers Use LLM Agent for Post-Exploitation After Marimo CVE-2026-39987 Exploit

An unknown threat actor has been observed using a large language model (LLM) agent to conduct post-compromise actions after obtaining initial access following the exploitation of a publicly-accessible Marimo network usin…

From $5 Attacks to Botnet-Powered Platforms: Inside the DDoS-as-a- Service Market

DDoS attacks are increasingly being sold like subscription services, complete with pricing tiers, support, and reseller programs. Flare explores how the DDoS-as-a-Service market has evolved from scattered tools into poli…

New Russia-Linked GREYVIBE Targets Ukraine with AI-Powered Cyberattacks

A previously undocumented threat actor dubbed GREYVIBE has been attributed to ongoing and persistent attacks targeting Ukraine and Ukraine-related entities since at least August 2025. GREYVIBE, per WithSecure, is assess…

What 2,000 Exposed Vibe-Coded Apps Reveal About the Limits of Most Security Stacks

Shadow AI used to mean employees pasting things they shouldn't into ChatGPT. It now means something bigger: employees building full applications with AI, wiring them into production systems, and publishing them on the op…

ISC Stormcast For Friday, May 29th, 2026 https://isc.sans.edu/podcastdetail/9950, (Fri, May 29th)

Analysis of a Year of Files Uploaded to DShield Sensors, (Wed, May 27th)

Using the data collected over the past year and using Kibana these two ES|QL query to summarize the data, this shows the list of the most uploaded threat to two DShield sensors (local and cloud) over the past year. …

ISC Stormcast For Thursday, May 28th, 2026 https://isc.sans.edu/podcastdetail/9948, (Thu, May 28th)

Reconstructing an Akira Ransomware Kill Chain from Perimeter and Endpoint Logs, (Wed, May 27th)

Most Akira write-ups focus on the ransom note or the encryption routine. By the time those show up the interesting forensic work is over. The questions that matter to defenders sit earlier. How did they get in. When did …

ISC Stormcast For Wednesday, May 27th, 2026 https://isc.sans.edu/podcastdetail/9946, (Wed, May 27th)

Netherlands Seizes 800 Servers, Arrests 2 for Aiding Cyberattacks

Authorities in the Netherlands have arrested the co-owners of two related Internet hosting companies for operating IT infrastructure used by Russia to carry out cyberattacks, influence operations and disinformation campa…

Lawmakers Demand Answers as CISA Tries to Contain Data Leak

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 …

Alleged Kimwolf Botmaster ‘Dort’ Arrested, Charged in U.S. and Canada

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 mass…

CISA Admin Leaked AWS GovCloud Keys on Github

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 a…

Patch Tuesday, May 2026 Edition

Artificial intelligence platforms may be just as susceptible to social engineering as human beings, but they are proving remarkably good at finding security vulnerabilities in human-made computer code. That reality is on…

Canvas Breach Disrupts Schools & Colleges Nationwide

An ongoing data extortion attack targeting the widely-used education technology platform Canvas disrupted classes and coursework at school districts and universities across the United States today, after a cybercrime gro…