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Background for this topic.
Firewalls are security controls that permit or block network connections according to policy. They can operate at network boundaries, between internal segments, on individual hosts, or in cloud environments. Basic rules use addresses, ports, protocols, and connection state; more advanced firewalls may inspect applications or encrypted traffic where configured. Their purpose is to limit which systems can communicate, not to determine that all permitted traffic is safe.
Security depends heavily on accurate policy and maintenance. Overly broad, obsolete, or conflicting rules can expose services or allow unnecessary lateral movement, while unmanaged administrative interfaces and unpatched firewall software create additional attack surfaces. Practitioners should restrict management access, apply least-privilege rules, review and remove exceptions, and monitor logs for unexpected connections and policy changes. Firewall logs can support investigation, but encryption, evasion, and traffic allowed by policy may limit what the control can detect.
Weekly headline count for the current query.
A Go botnet called NadMesh turned up in early July hunting exposed AI services, and the operator's own dashboard claims 3,811 unique AWS keys
After gaining a foothold in thousands of Fortinet firewalls, the attackers are starting to monetize that access, and are also piling on a Nextcloud zero-day bug.
Rapid growth turned routine firewall logs into a security and budget liability. One CISO used artificial intelligence to filter what data truly belongs in the SIEM.
A Russian-speaking initial access broker (IAB) driven by financial gain is assessed to be behind a large-scale credential-harvesting operation known as FortiBleed that has targeted over 430,000 FortiGate firewalls globally
The threat actors engineered a Golang-based sniffer to target 430,000 FortiGate firewalls and identify 110 million credentials in the ongoing global campaign.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) urged Fortinet customers to secure their devices after nearly 74,000 firewall and VPN credentials were exposed in a data leak dubbed "FortiBleed." [...]
Ongoing Campaign May Be Grabbing Legacy Passwords From Fortinet FortiGate DevicesCybercriminals are selling access to 75,000 Fortinet FortiGate devices with VPN and web management interfaces, and the admin credentials appear to be legitimate and recently harvested as part of a still-live campaign, security experts warned.
A newly discovered data leak dubbed "FortiBleed" has exposed what appears to be a collection of Fortinet and FortiGate VPN credentials for 73,932 firewall URLs at organizations worldwide. [...]
FortiBleed: Admin Passwords for 75,000 Fortinet Firewalls Are Out in the Wild. Half the Internet-Facing Fortinets on the Planet. Security researcher Bob Diachenko found a server sitting open on the internet containing what appeared to be valid Fortinet VPN credentials, including usernames, email addresses, and plaintext passwords for tens of thousands of organizations. He posted […]
Why are you even reading this?! Rotate your passwords!!
CEO Nikesh Arora Says Agentic Workloads Generate Traffic Requiring InspectionPalo Alto Networks said surging AI infrastructure investment and growing enterprise demand for AI governance are expanding cybersecurity spending, while false positives from advanced AI vulnerability tools underscore the continued need for human oversight.
Twenty years after Dark Reading launched, we're looking ahead at what's next for enterprise security. Spoiler: It's hyper-segmented, AI-orchestrated, and way more sophisticated than your dad's firewall.
The threat group behind the attacks is also linked to a series of recently disclosed vulnerabilities in the vendor’s firewalls and SD-WAN systems. The post Cisco zero-day under ongoing attack by persistent threat group appeared first on CyberScoop.
Palo Alto Networks warned customers that suspected state-sponsored hackers have been exploiting a critical-severity PAN-OS firewall zero-day vulnerability for nearly a month. [...]
The vendor hasn’t released a patch for the vulnerability or described the scope and objective of confirmed attacks. The post A critical Palo Alto PAN-OS zero-day is being exploited in the wild appeared first on CyberScoop.
Vendor Details Mitigations, Promises Patched PAN-OS Software in Coming WeeksPalo Alto Networks warned that a critical vulnerability in the PAN-OS software that runs its firewalls is being actively exploited in the wild by attackers. The vendor detailed temporary mitigations and promised to release updated software to fully patch the flaw later this month.
Palo Alto Networks warned customers today that a critical-severity unpatched vulnerability in the PAN-OS User-ID Authentication Portal is being exploited in attacks. [...]
Global recruitment giant says 71% of human firewalls saw wages stagnate last year as threats and responsibilities grew
Global recruitment giant says 71% of human firewalls saw wages stagnate last year as threats and responsibilities grew Cybersecurity professionals were the most overlooked workers in IT when it came to pay rises in 2025, according to new figures from recruiter Harvey Nash.…