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Aujourd’hui — 28 août 2025The Hacker News

Storm-0501 Exploits Entra ID to Exfiltrate and Delete Azure Data in Hybrid Cloud Attacks

The financially motivated threat actor known as Storm-0501 has been observed refining its tactics to conduct data exfiltration and extortion attacks targeting cloud environments. "Unlike traditional on-premises ransomware, where the threat actor typically deploys malware to encrypt critical files across endpoints within the compromised network and then negotiates for a decryption key,

Hier — 27 août 2025The Hacker News

Someone Created First AI-Powered Ransomware Using OpenAI's gpt-oss:20b Model

Cybersecurity company ESET has disclosed that it discovered an artificial intelligence (AI)-powered ransomware variant codenamed PromptLock. Written in Golang, the newly identified strain uses the gpt-oss:20b model from OpenAI locally via the Ollama API to generate malicious Lua scripts in real-time. The open-weight language model was released by OpenAI earlier this month. "PromptLock

Anthropic Disrupts AI-Powered Cyberattacks Automating Theft and Extortion Across Critical Sectors

Anthropic on Wednesday revealed that it disrupted a sophisticated operation that weaponized its artificial intelligence (AI)-powered chatbot Claude to conduct large-scale theft and extortion of personal data in July 2025. "The actor targeted at least 17 distinct organizations, including in healthcare, the emergency services, and government, and religious institutions," the company said. "

ShadowSilk Hits 35 Organizations in Central Asia and APAC Using Telegram Bots

A threat activity cluster known as ShadowSilk has been attributed to a fresh set of attacks targeting government entities within Central Asia and Asia-Pacific (APAC). According to Group-IB, nearly three dozen victims have been identified, with the intrusions mainly geared towards data exfiltration. The hacking group shares toolset and infrastructural overlaps with campaigns undertaken by threat

The 5 Golden Rules of Safe AI Adoption

Employees are experimenting with AI at record speed. They are drafting emails, analyzing data, and transforming the workplace. The problem is not the pace of AI adoption, but the lack of control and safeguards in place. For CISOs and security leaders like you, the challenge is clear: you don’t want to slow AI adoption down, but you must make it safe. A policy sent company-wide will not cut it.

Salesloft OAuth Breach via Drift AI Chat Agent Exposes Salesforce Customer Data

A widespread data theft campaign has allowed hackers to breach sales automation platform Salesloft to steal OAuth and refresh tokens associated with the Drift artificial intelligence (AI) chat agent. The activity, assessed to be opportunistic in nature, has been attributed to a threat actor tracked by Google Threat Intelligence Group and Mandiant, tracked as UNC6395. "Beginning as early as

Blind Eagle’s Five Clusters Target Colombia Using RATs, Phishing Lures, and Dynamic DNS Infra

Cybersecurity researchers have discovered five distinct activity clusters linked to a persistent threat actor known as Blind Eagle between May 2024 and July 2025. These attacks, observed by Recorded Future Insikt Group, targeted various victims, but primarily within the Colombian government across local, municipal, and federal levels. The threat intelligence firm is tracking the activity under

À partir d’avant-hierThe Hacker News

Citrix Patches Three NetScaler Flaws, Confirms Active Exploitation of CVE-2025-7775

Citrix has released fixes to address three security flaws in NetScaler ADC and NetScaler Gateway, including one that it said has been actively exploited in the wild. The vulnerabilities in question are listed below - CVE-2025-7775 (CVSS score: 9.2) - Memory overflow vulnerability leading to Remote Code Execution and/or Denial-of-Service CVE-2025-7776 (CVSS score: 8.8) - Memory overflow

New Sni5Gect Attack Crashes Phones and Downgrades 5G to 4G without Rogue Base Station

A team of academics has devised a novel attack that can be used to downgrade a 5G connection to a lower generation without relying on a rogue base station (gNB). The attack, per the ASSET (Automated Systems SEcuriTy) Research Group at the Singapore University of Technology and Design (SUTD), relies on a new open-source software toolkit named Sni5Gect (short for "Sniffing 5G Inject") that's

MixShell Malware Delivered via Contact Forms Targets U.S. Supply Chain Manufacturers

Cybersecurity researchers are calling attention to a sophisticated social engineering campaign that's targeting supply chain-critical manufacturing companies with an in-memory malware dubbed MixShell. The activity has been codenamed ZipLine by Check Point Research. "Instead of sending unsolicited phishing emails, attackers initiate contact through a company's public 'Contact Us' form, tricking

ShadowCaptcha Exploits WordPress Sites to Spread Ransomware, Info Stealers, and Crypto Miners

A new large-scale campaign has been observed exploiting over 100 compromised WordPress sites to direct site visitors to fake CAPTCHA verification pages that employ the ClickFix social engineering tactic to deliver information stealers, ransomware, and cryptocurrency miners. The large-scale cybercrime campaign, first detected in August 2025, has been codenamed ShadowCaptcha by the Israel National

HOOK Android Trojan Adds Ransomware Overlays, Expands to 107 Remote Commands

Cybersecurity researchers have discovered a new variant of an Android banking trojan called HOOK that features ransomware-style overlay screens to display extortion messages. "A prominent characteristic of the latest variant is its capacity to deploy a full-screen ransomware overlay, which aims to coerce the victim into remitting a ransom payment," Zimperium zLabs researcher Vishnu Pratapagiri

Google to Verify All Android Developers in 4 Countries to Block Malicious Apps

Google has announced plans to begin verifying the identity of all developers who distribute apps on Android, even for those who distribute their software outside the Play Store. "Android will require all apps to be registered by verified developers in order to be installed by users on certified Android devices," the company said. "This creates crucial accountability, making it much harder for

CISA Adds Three Exploited Vulnerabilities to KEV Catalog Affecting Citrix and Git

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added three security flaws impacting Citrix Session Recording and Git to its Known Exploited Vulnerabilities (KEV) catalog, based on evidence of active exploitation. The list of vulnerabilities is as follows - CVE-2024-8068 (CVSS score: 5.1) - An improper privilege management vulnerability in Citrix Session Recording

UNC6384 Deploys PlugX via Captive Portal Hijacks and Valid Certificates Targeting Diplomats

A China-nexus threat actor known as UNC6384 has been attributed to a set of attacks targeting diplomats in Southeast Asia and other entities across the globe to advance Beijing's strategic interests. "This multi-stage attack chain leverages advanced social engineering including valid code signing certificates, an adversary-in-the-middle (AitM) attack, and indirect execution techniques to evade

Docker Fixes CVE-2025-9074, Critical Container Escape Vulnerability With CVSS Score 9.3

Docker has released fixes to address a critical security flaw affecting the Docker Desktop app for Windows and macOS that could potentially allow an attacker to break out of the confines of a container. The vulnerability, tracked as CVE-2025-9074, carries a CVSS score of 9.3 out of 10.0. It has been addressed in version 4.44.3. "A malicious container running on Docker Desktop could access the

Phishing Campaign Uses UpCrypter in Fake Voicemail Emails to Deliver RAT Payloads

Cybersecurity researchers have flagged a new phishing campaign that's using fake voicemails and purchase orders to deliver a malware loader called UpCrypter. The campaign leverages "carefully crafted emails to deliver malicious URLs linked to convincing phishing pages," Fortinet FortiGuard Labs researcher Cara Lin said. "These pages are designed to entice recipients into downloading JavaScript

⚡ Weekly Recap: Password Manager Flaws, Apple 0-Day, Hidden AI Prompts, In-the-Wild Exploits & More

Cybersecurity today moves at the pace of global politics. A single breach can ripple across supply chains, turn a software flaw into leverage, or shift who holds the upper hand. For leaders, this means defense isn’t just a matter of firewalls and patches—it’s about strategy. The strongest organizations aren’t the ones with the most tools, but the ones that see how cyber risks connect to business

Why SIEM Rules Fail and How to Fix Them: Insights from 160 Million Attack Simulations

Security Information and Event Management (SIEM) systems act as the primary tools for detecting suspicious activity in enterprise networks, helping organizations identify and respond to potential attacks in real time. However, the new Picus Blue Report 2025, based on over 160 million real-world attack simulations, revealed that organizations are only detecting 1 out of 7 simulated attacks,

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