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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

Microsoft Warns of Malvertising Scheme Spreading CACTUS Ransomware

Microsoft has warned of a new wave of CACTUS ransomware attacks that leverage malvertising lures to deploy DanaBot as an initial access vector.The DanaBot infe…

The Hacker News
The Hacker News Vulnerabilities

Iranian Hackers Exploit PLCs in Attack on Water Authority in U.S.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) revealed that it's responding to a cyber attack that involved the active exploitation of Unitr…

The Hacker News
The Hacker News Breaches & leaks

LockBit Ransomware Exploiting Critical Citrix Bleed Vulnerability to Break In

Multiple threat actors, including LockBit ransomware affiliates, are actively exploiting a recently disclosed critical security flaw in Citrix NetScaler applic…

Citrix

The Hacker News
The Hacker News Breaches & leaks

U.S. Cybersecurity Agencies Warn of Scattered Spider's Gen Z Cybercrime Ecosystem

U.S. cybersecurity and intelligence agencies have released a joint advisory about a cybercriminal group known asScattered Spiderthat's known to employ sophisti…

The Hacker News
The Hacker News Vulnerabilities

CISA Adds Three Security Flaws with Active Exploitation to KEV Catalog

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added three security flaws to its Known Exploited Vulnerabilities (KEV) catalog ba…

Windows

The Hacker News
The Hacker News Breaches & leaks

CISA and FBI Issue Warning About Rhysida Ransomware Double Extortion Attacks

The threat actors behind theRhysida ransomwareengage in opportunistic attacks targeting organizations spanning various industry sectors.The advisory comes cour…

The Hacker News
The Hacker News Vulnerabilities

Urgent: VMware Warns of Unpatched Critical Cloud Director Vulnerability

VMware is warning of a critical and unpatched security flaw in Cloud Director that could be exploited by a malicious actor to get around authentication protect…

VMware

The Hacker News
The Hacker News Vulnerabilities

CISA Alerts: High-Severity SLP Vulnerability Now Under Active Exploitation

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesdayaddeda high-severity flaw in the Service Location Protocol (SLP) to its Known Expl…

The Hacker News
The Hacker News Vulnerabilities

Alert: F5 Warns of Active Attacks Exploiting BIG-IP Vulnerability

F5 is warning of active abuse of a critical security flaw in BIG-IP less than a week after its public disclosure, resulting in the execution of arbitrary syste…

The Hacker News
The Hacker News Vulnerabilities

Atlassian Warns of New Critical Confluence Vulnerability Threatening Data Loss

Atlassian has warned of a critical security flaw in Confluence Data Center and Server that could result in "significant data loss if exploited by an unauthenti…

The Hacker News
The Hacker News Vulnerabilities

F5 Issues Warning: BIG-IP Vulnerability Allows Remote Code Execution

F5 has alerted customers of a critical security vulnerability impacting BIG-IP that could result in unauthenticated remote code execution.The issue, rooted in …

The Hacker News
The Hacker News Breaches & leaks

Microsoft Warns as Scattered Spider Expands from SIM Swaps to Ransomware

The prolific threat actor known asScattered Spiderhas been observed impersonating newly hired employees in targeted firms as a ploy to blend into normal on-hir…

The Hacker News
The Hacker News Vulnerabilities

Alert: PoC Exploits Released for Citrix and VMware Vulnerabilities

Virtualization services provider VMware has alerted customers to the existence of a proof-of-concept (PoC) exploit for a recently patched security flaw in Aria…

VMware Citrix

The Hacker News
The Hacker News Breaches & leaks

FBI, CISA Warn of Rising AvosLocker Ransomware Attacks Against Critical Infrastructure

The AvosLocker ransomware gang has been linked to attacks against critical infrastructure sectors in the U.S., with some of them detected as recently as May 20…

The Hacker News
The Hacker News Vulnerabilities

U.S. Cybersecurity Agency Warns of Actively Exploited Adobe Acrobat Reader Vulnerability

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesdayaddeda high-severity flaw in Adobe Acrobat Reader to its Known Exploited Vulnerabili…

The Hacker News
The Hacker News Vulnerabilities

CISA Warns of Actively Exploited Adobe Acrobat Reader Vulnerability

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesdayaddeda high-severity flaw in Adobe Acrobat Reader to its Known Exploited Vulnerabili…

The Hacker News
The Hacker News Vulnerabilities

Microsoft Warns of Nation-State Hackers Exploiting Critical Atlassian Confluence Vulnerability

Microsoft has linked the exploitation of a recently disclosed critical flaw in Atlassian Confluence Data Center and Server to a nation-state actor it tracks as…

The Hacker News
The Hacker News Vulnerabilities

Security Patch for Two New Flaws in Curl Library Arriving on October 11

The maintainers of theCurl libraryhave released an advisory warning of two security vulnerabilities that are expected to be addressed as part of an forthcoming…

The Hacker News
The Hacker News Vulnerabilities

CISA Warns of Active Exploitation of JetBrains and Windows Vulnerabilities

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesdayaddedtwo security flaws to its Known Exploited Vulnerabilities (KEV) catalog due t…

Windows

The Hacker News
The Hacker News Breaches & leaks

Microsoft Warns of Cyber Attacks Attempting to Breach Cloud via SQL Server Instance

Microsoft has detailed a new campaign in which attackers unsuccessfully attempted to move laterally to a cloud environmentthrough an SQL Server instance."The a…

The Hacker News
The Hacker News Breaches & leaks

FBI Warns of Rising Trend of Dual Ransomware Attacks Targeting U.S. Companies

The U.S. Federal Bureau of Investigation (FBI) is warning of a new trend of dual ransomware attacks targeting the same victims, at least since July 2023."Durin…

The Hacker News
The Hacker News Vulnerabilities

Cisco Warns of Vulnerability in IOS and IOS XE Software After Exploitation Attempts

Cisco is warning of attempted exploitation of a security flaw in its IOS Software and IOS XE Software that could permit an authenticated remote attacker to ach…

Cisco

The Hacker News
The Hacker News Breaches & leaks

CISA Warning: Nation-State Hackers Exploit Fortinet and Zoho Vulnerabilities

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday warned that multiple nation-state actors are exploiting security flaws in Fortinet…

Fortinet VPN

The Hacker News
The Hacker News Breaches & leaks

Kroll Suffers Data Breach: Employee Falls Victim to SIM Swapping Attack

Risk and financial advisory solutions provider Kroll on Friday disclosed that one of its employees fell victim to a "highly sophisticated" SIM swapping attack.…