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Sophos details five years of China-linked threat actors’ activity targeting network devices worldwide

Security Affairs

Sophos used custom implants to monitor China-linked thret actors targeting firewall zero-days in a years-long battle. Improved operational security, including disrupting firewall telemetry to hinder detection and minimize their digital footprint. ” concludes the report.

Firmware 120
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U.S. CISA adds SonicWall SonicOS and Palo Alto PAN-OS flaws to its Known Exploited Vulnerabilities catalog

Security Affairs

The two vulnerabilities are: CVE-2025-0108 Palo Alto PAN-OS Authentication Bypass Vulnerability CVE-2024-53704 SonicWall SonicOS SSLVPN Improper Authentication Vulnerability Researchers recently warned that threat actors exploit a recently disclosed vulnerability, CVE-2025-0108, in Palo Alto Networks PAN-OS firewalls. states GreyNoise.

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Top 12 Firewall Best Practices to Optimize Network Security

eSecurity Planet

Firewalls monitor and control incoming and outgoing traffic while also preventing unauthorized access. Overlapping rules may impair firewall efficiency or expose flaws that allow attackers to circumvent regulations. Choose a centralized platform that is interoperable with several firewall suppliers.

Firewall 121
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Cyclops Blink malware: US and UK authorities issue alert

Malwarebytes

According to WatchGuard , Cyclops Blink may have affected approximately 1% of active firewall appliances, which are devices mainly used by business customers. Cyclops Blink has been found in WatchGuard’s firewall devices since at least June 2019. Mitigation and detection.

Malware 145
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How To Set Up a Firewall in 8 Easy Steps + Best Practices

eSecurity Planet

Setting up a firewall is the first step in securing your network. A successful firewall setup and deployment requires careful design, implementation, and maintenance to effectively improve your network integrity and data security. Verify that the chosen firewall can meet your security standards and functions.

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US and UK link new Cyclops Blink malware to Russian state hackers?

Security Affairs

According to WatchGuard , Cyclops Blink may have affected roughly 1% of all active WatchGuard firewall appliances. “The actor has so far primarily deployed Cyclops Blink to WatchGuard devices, but it is likely that Sandworm would be capable of compiling the malware for other architectures and firmware.”

Malware 112
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CISA Order Highlights Persistent Risk at Network Edge

Krebs on Security

The directive applies to any networking devices — such as firewalls, routers and load balancers — that allow remote authentication or administration. The researchers found that just being able to reach the management interface for a vulnerable Fortinet SSL VPN appliance was enough to completely compromise the devices.

Risk 272