Network Security


NEWS 
  • CISA gives US federal agencies three days to fix a VPN bug under attack by a ransomware gang

    June 9, 2026

    A ransomware group is actively exploiting an unpatched flaw in security tools used across the U.S. federal government, prompting the U.S. cybersecurity agency CISA to order all civilian agencies to remediate the vulnerability by end of day Wednesday. Cybersecurity firm Check Point Software said the bug affects several of its remote access tools, firewalls, and VPNs, which act as ...

  • Palo Alto VPN bug graduates from advisory to active exploitation

    June 1, 2026

    Palo Alto customers are being been told to patch yet another internet-facing security flaw after researchers caught attackers bypassing GlobalProtect authentication and gaining unauthorized VPN access. The flaw, tracked as CVE-2026-0257, affects PAN-OS deployments using GlobalProtect authentication override cookies under specific configurations. Read more… Source:  The Register Sign up for the Cyber Security Review Newsletter The latest cyber security news and ...

  • Cybercriminal VPN used by ransomware actors dismantled in global crackdown

    May 21, 2026

    A VPN service used by cybercriminals to conceal ransomware attacks, data theft, and other serious offences has been dismantled in an international operation led by France and the Netherlands, with support from Europol and Eurojust. For years, the service, known as ‘First VPN’, was promoted on Russian-speaking cybercrime forums as a trusted tool for remaining beyond ...

  • Hackers crawled Canadian streets with SMS blasters causing 13 million network disruptions

    May 1, 2026

    Authorities in Canada have disclosed details of a mobile cyber operation that relied on SMS blasters mounted inside vehicles moving through urban areas. Three suspects drove around downtown Toronto with these hidden devices running in their cars, impersonating cell towers. The Toronto Police Service confirmed that this marked the first operation of its kind ever recorded ...

  • CISA flags data-theft bug in NSA-built OT networking tool

    April 29, 2026

    The Cybersecurity and Infrastructure Security Agency (CISA) is warning anyone who uses GrassMarlin, a tool developed by the National Security Agency (NSA), about a new vulnerability that attackers can use to snoop on sensitive information. First reported by Grady DeRosa, senior industrial pentester at Dragos, the weak spot affects all versions of GrassMarlin, a tool developed ...

  • Governments on high alert after CISA snuffs out Firestarter backdoor on fed network

    April 24, 2026

    A US federal agency was successfully targeted by a previously unknown backdoor malware called Firestarter, according to CISA cybersnoops and their UK counterparts – neither of which disclosed the agency’s name. Federal Civilian Executive Branch (FCEB) agencies include NASA; Homeland Security itself (cyberworkers at CISA are part of an operational unit in Homeland Security); the FBI; the DoJ; the IRS; the ...

  • When Wi-Fi Encryption Fails: Protecting Your Enterprise from AirSnitch Attacks

    April 22, 2026

    Enterprises have long trusted Wi-Fi encryption and client isolation to secure their wireless infrastructure. However, Palo Alto conducted research presented at the NDSS Symposium 2026 that reveals that these safeguards can be breached by a novel set of attack techniques that they call AirSnitch. These techniques exploit subtle security issues in protocol-infrastructure interactions to undermine the ...

  • Iran claims US used backdoors to knock out networking equipment during war

    April 21, 2026

    Iranian media is claiming that the US used backdoors and/or botnets to disable networking equipment during the current war, and Chinese state media is dining out on the allegations. Reports from Iran claim hardware made by Cisco, Juniper, Fortinet, and MikroTik either rebooted or disconnected during recent attacks on Iran – despite the regime disconnecting the ...

  • Cisco tells Webex users to patch critical security flaws immediately

    April 17, 2026

    Cisco has pushed a new patch to address four critical-severity vulnerabilities plaguing its cloud-based Webex Services platform – and has also warned Wi-Fi access points users of a bug in certain versions of IOS XE that could result in a device bootloop. Webex Services is a platform for communication and collaboration, letting people hold video meetings, ...

  • Russian hacking group targets home and small office routers to spy on users

    April 8, 2026

    British security officials found that a group linked to the Russian military is spying on users of compromised Small Office/Home Office (SOHO) routers in a broad cyber espionage campaign. A Microsoft blog goes into the technical details of these attacks. The group, which researchers will refer to as APT28, but is also known under names like ...