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1613 result(s) for "Email security" — best match first.

What it means for your servers

The security stories that matter, explained by our team — with the concrete steps to take.

Latest headlines from security outlets

Collected every two hours from specialised publications — each link leads to the original article.

The Hacker News
The Hacker News Breaches & leaks

The Gentlemen RaaS Uses GentleKiller EDR Framework Targeting 400 Security Processes

The Gentlemen ransomware-as-a-service (RaaS) operation is actively developing and maintaining a suite of endpoint detection and response (EDR) killers that it …

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

Linux Persistence Hunting: The 5 Techniques Security Teams Miss Most

You remove the malware. You rotate the compromised credentials. You patch the original vulnerability and close the ticket. Two weeks later, the attacker is bac…

Linux

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

Linux Security Monitoring Challenges and EDR Visibility Gaps

An attacker compromises a Linux container, launches a cryptominer, sets up a way to stay in the system through a background task, and disappears before the inv…

Linux Docker

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Breaches & leaks

CentOS 8 Security Update for CVE-2023-9876-1 to Fix System Breach

An update that solves six vulnerabilities can now be installed.

Linux

The Hacker News
The Hacker News Breaches & leaks

Why Third-Party Risk Is the Biggest Gap in Your Clients' Security Posture

The next major breach hitting your clients probably won't come from inside their walls. It'll come through a vendor they trust, a SaaS tool their finance team …

The Hacker News
The Hacker News Breaches & leaks

CISA Warns of Zimbra, SharePoint Flaw Exploits; Cisco Zero-Day Hit in Ransomware Attacks

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has urged government agencies to apply patches for two security flaws impacting Synacor Zimbra…

Microsoft 365 Cisco

The Hacker News
The Hacker News Breaches & leaks

CISA Flags Actively Exploited Wing FTP Vulnerability Leaking Server Paths

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added a medium-severity security flaw impacting Wing FTP to its Known Exploited Vuln…

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Breaches & leaks

SUSE 2026-0879-1 curl Important Token Leak Security Update

An update that solves four vulnerabilities can now be installed.

Linux

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

Linux Security in 2026 Hardening Monitoring and Defense Strategies

Linux runs an enormous share of the modern internet - cloud workloads, web backends, containers, routers, IoT devices, and the quiet infrastructure nobody noti…

Linux Docker

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

Maintaining DKIM Integrity for Linux-Based Email Servers in Operation

If you run Postfix, Exim, or OpenSMTPD on Linux, DKIM is already your problem. The private key lives on your box. If that key leaks or signing stops, your doma…

Linux

The Hacker News
The Hacker News Breaches & leaks

Researchers Reveal Reprompt Attack Allowing Single-Click Data Exfiltration From Microsoft Copilot

Cybersecurity researchers have disclosed details of a new attack method dubbed Reprompt that could allow bad actors to exfiltrate sensitive data from artificia…

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

Threat Analysis and Cyber Intelligence in Linux Security

Over the last decade, the volume of cyber threats has grown, but their shape has changed even more. Attacks no longer sit neatly inside a few predictable categ…

Linux

The Hacker News
The Hacker News Breaches & leaks

Traditional Security Frameworks Leave Organizations Exposed to AI-Specific Attack Vectors

In December 2024, the popular Ultralytics AI library was compromised, installing malicious code that hijacked system resources for cryptocurrency mining. In Au…

GitHub

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

Full Disk Encryption: What It Is, How It Works, and Why It Matters for Linux Security in 2026

Full disk encryption is no longer optional in Linux environments. Ubuntu 24.04 LTS, Fedora 41, and Debian 12 now ship with it enabled during installation. Regu…

Linux

The Hacker News
The Hacker News Breaches & leaks

New Fluent Bit Flaws Expose Cloud to RCE and Stealthy Infrastructure Intrusions

Cybersecurity researchers have discovered five vulnerabilities in Fluent Bit, an open-source and lightweight telemetry agent, that could be chained to compromi…

The Hacker News
The Hacker News Breaches & leaks

Active Directory Under Siege: Why Critical Infrastructure Needs Stronger Security

Active Directory remains the authentication backbone for over 90% of Fortune 1000 companies. AD's importance has grown as companies adopt hybrid and cloud infr…

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

SonicWall: Firewall Management and Security Lessons After Breach

SonicWall confirmed a breach in its cloud backup system that exposed customer configuration files. It's the kind of incident that looks small until you see wha…

VPN

The Hacker News
The Hacker News Breaches & leaks

U.S. Prosecutors Indict Cybersecurity Insiders Accused of BlackCat Ransomware Attacks

Federal prosecutors in the U.S. have accused a trio of allegedly hacking the networks of five U.S. companies with BlackCat (aka ALPHV) ransomware between May a…

The Hacker News
The Hacker News Breaches & leaks

Critical Lanscope Endpoint Manager Bug Exploited in Ongoing Cyberattacks, CISA Confirms

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a critical security flaw impacting Motex Lanscope Endpoint Manager to its K…

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

CVE-2025-11371: Linux Security Must Prepare for Cross-Stack Breach

CVE-2025-11371 doesn't target Linux directly. It doesn't need to.

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Breaches & leaks

Debian 11 LTS: linux-6.1 Critical Security Update DLA-4328-1

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

Linux

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

Cloud Linux Enhances E-Commerce Security and Performance

E-commerce businesses live and die by trust. A single data breach, a few minutes of downtime during peak traffic, or failure to meet compliance can sink custom…

Linux

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

Full Disk Encryption: What It Is, How It Works, and Why It Matters for Linux Security in 2025

Full disk encryption is no longer optional in Linux environments. Ubuntu 24.04 LTS, Fedora 41, and Debian 12 now ship with it enabled during installation. Regu…

Linux

The Hacker News
The Hacker News Breaches & leaks

Researchers Uncover GPT-4-Powered MalTerminal Malware Creating Ransomware, Reverse Shell

Cybersecurity researchers have discovered what they say is the earliest example known to date of a malware that bakes in Large Language Model (LLM) capabilitie…