Cybersecurity researchers have disclosed details of a new Linux malware dubbed Showboat that has been put to use in a campaign targeting a telecommunications provider in the Middle East since at least mid-2022. “Showboat is a modular post-exploitation framework designed…
Category: The Hacker News
ThreatsDay Bulletin: Linux Rootkits, Router 0-Day, AI Intrusions, Scam Kits and 25 New Stories
This week starts small. A token leaks. A bad package slips in. A login trick works. An old tool shows up again. At first, it feels like the usual mess. Then you see the pattern: attackers are not always breaking…
Microsoft Warns of Two Actively Exploited Defender Vulnerabilities
Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender has come under active exploitation in the wild. The former, tracked as CVE-2026-41091, is rated 7.8 on the CVSS scoring system. Successful exploitation of the flaw could…
When Identity is the Attack Path
Consider a cached access key on a single Windows machine. It got there the way most cached credentials do – a user logged in, and the key stored itself automatically. Standard AWS behavior. No one misconfigured anything or violated a…
9-Year-Old Linux Kernel Flaw Enables Root Command Execution on Major Distros
Cybersecurity researchers have disclosed details of a vulnerability in the Linux kernel that remained undetected for nine years. The vulnerability, tracked as CVE-2026-46333 (CVSS score: 5.5), is a case of improper privilege management that could permit an unprivileged local user…
Highly Critical Drupal Core Flaw Exposes PostgreSQL Sites to RCE Attacks
Drupal has released security updates for a “highly critical” security vulnerability in Drupal Core that could be exploited by attackers to achieve remote code execution, privilege escalation, or information disclosure. The vulnerability, now tracked as CVE-2026-9082, carries a CVSS score…
GitHub Internal Repositories Breached via Malicious Nx Console VS Code Extension
GitHub on Wednesday officially confirmed that the breach of its internal repositories was the result of a compromise of an employee device involving a poisoned version of the Nx Console Microsoft Visual Studio Code (VS Code) extension. The development comes…
Microsoft Open-Sources RAMPART and Clarity to Secure AI Agents During Development
Microsoft has unveiled two new open-source tools called RAMPART and Clarity to assist developers in better testing the security of artificial intelligence (AI) agents. RAMPART, short for Risk Assessment and Measurement Platform for Agentic Red Teaming, functions as a Pytest-native…
Microsoft Takes Down Malware-Signing Service Behind Ransomware Attacks
Microsoft on Tuesday said it disrupted a malware-signing-as-a-service (MSaaS) operation that weaponized the company’s Artifact Signing system to deliver malicious code and conduct ransomware and other attacks, compromising thousands of machines and networks across the world. The tech giant attributed…
Agent AI is Coming. Are You Ready?
New Industry Data Just Released Suggests Not. On May 19th, 2026, Orchid Security released the results of our Identity Gap: Snapshot 2026. Among the findings, “identity dark matter” (the unseen, unmanaged elements of identity) now overshadows the visible elements 57%…
Webworm Deploys EchoCreep and GraphWorm Backdoors Using Discord and MS Graph API
Cybersecurity researchers have flagged fresh activity from a China-aligned threat actor known as Webworm in 2025, deploying custom backdoors that employ Discord and Microsoft Graph API for command-and-control (C2 or C&C) communications. Webworm, first publicly documented by Broadcom-owned Symantec in…
GitHub Breached — Employee Device Hack Led to Exfiltration of 3,800+ Internal Repos
GitHub on Tuesday said it’s investigating unauthorized access to its internal repositories after the notorious threat actor known as TeamPCP listed the platform’s source code and internal organizations for sale on a cybercrime forum. “While we currently have no evidence…
Typosquatting Is No Longer a User Problem. It’s a Supply Chain Problem
AI-generated lookalike domains are now embedded inside the third-party scripts running on your web properties. Here’s why your current stack can’t see them, and what detection actually requires. Download the CISO Expert Guide to Typosquatting in the AI Era →…
Microsoft Releases Mitigation for YellowKey BitLocker Bypass CVE-2026-45585 Exploit
Microsoft on Tuesday released a mitigation for a BitLocker bypass vulnerability named YellowKey following its public disclosure last week. The zero-day flaw, now tracked as CVE-2026-45585, carries a CVSS score of 6.8. It has been described as a BitLocker security…
Grafana GitHub Breach Exposes Source Code via TanStack npm Attack
Grafana Labs, on May 19, 2026, said an investigation into its recent breach found no evidence of customer production systems or operations being compromised. It said the scope of the incident is limited to the Grafana Labs GitHub environment, which…
GitHub Investigating TeamPCP Claimed Breach of ~4,000 Internal Repositories
GitHub on Tuesday said it’s investigating unauthorized access to its internal repositories after the notorious threat actor known as TeamPCP listed the platform’s source code and internal organizations for sale on a cybercrime forum. “While we currently have no evidence…
Trapdoor Android Ad Fraud Scheme Hit 659 Million Daily Bid Requests Using 455 Apps
Cybersecurity researchers have disclosed details of a new ad fraud and malvertising operation dubbed Trapdoor targeting Android device users. The activity, per HUMAN’s Satori Threat Intelligence and Research Team, encompassed 455 malicious Android apps and 183 threat actor-owned command-and-control (C2)…
DirtyDecrypt PoC Released for Linux Kernel CVE-2026-31635 LPE Vulnerability
Proof-of-concept (PoC) exploit code has now been released for a recently patched security flaw in the Linux kernel that could allow for local privilege escalation (LPE). Dubbed DirtyDecrypt (aka DirtyCBC), the vulnerability was discovered and reported by the Zellic and…
Drupal to Release Urgent Core Security Updates on May 20, Sites Told to Prepare
Drupal has issued an alert stating that it intends to release a “core security release” for all supported branches on May 20, 2026, from 5-9 p.m. UTC. “The Drupal Security Team urges you to reserve time for core updates at…
The New Phishing Click: How OAuth Consent Bypasses MFA
In February 2026, a phishing-as-a-service (PhaaS) platform called EvilTokens went live. Within five weeks, it had compromised more than 340 Microsoft 365 organizations across five countries. The targets of the platform received a message asking them to enter a short…