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1692 result(s) for "Email security" — best match first.

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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

Lunex Stealer Abuses AMD Driver to Disable Security Monitoring and Steal Browser Credentials

The Psychedelic Stealer malware distributed via compromised Ukrainian websites using ClickFix-style Cloudflare verification checks is part of a wider malware-a…

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Breaches & leaks

Debian LTS linux-6.12 Security Update Privilege Escalation DLA-4788-1

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. For Debian 12…

Linux

The Hacker News
The Hacker News Breaches & leaks

N0va Phishkit Targets US and EU Businesses: A New Challenge for Identity Security

N0va is targeting organizations across North America and Europe with phishing campaigns that impersonate trusted services and abuse legitimate authentication f…

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Breaches & leaks

Fedora 44 curl Advisory for Critical Security Issues CVE-2026-10536

Fix HTTP/2 stream-dependency tree UAF (CVE-2026-10536) Fix Native CA trust persist (CVE-2026-11564) Fix stale proxy password leak (CVE-2026-9079) Fix wrong reu…

Linux

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

Why DNS Attacks Can Outrun Linux Security Monitoring

A Linux host intrusion prevention system can fail even when the protected server still has spare CPU. If its logging path cannot record and move events as quic…

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Breaches & leaks

Debian Trixie Linux Kernel Security Notice DSA-6405-1 Privilege Escalation

Debian announced multiple vulnerabilities in the Linux kernel, which could cause privilege escalation, denial of service, or information leaks, resolved in ver…

Linux

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

Installed Is Not Remediated: How to Verify Linux Security Patches in Production

There are several reasons why Linux has such a good reputation and has become such a good standard across the world. It is the power behind most internet serve…

Linux Android

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Breaches & leaks

SUSE libslirp Moderate Memory Leak Threat Security Update 2026-2886-1

An update that solves one vulnerability can now be installed.

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Breaches & leaks

Fedora 44 pam Timing Leak Fix CVE-2026-54411 Security Advisory

pam_userdb: fix password comparison timing leak

Linux

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

How Memory Leaks Affect System Stability and Security

A process with a stable workload shouldn't keep growing its resident memory. When it does, the first question isn't how much RAM is available. It's where the a…

Linux

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