24 Sep, 2026

Mozilla updates GPG signing key for Firefox releases after exposure

Mozilla announced today that it updated the GPG key used to sign Firefox and Thunderbird releases after it was accidentally exposed on GitHub. However, in a Monday blog post, it noted that the risk of a supply chain attack in which threat actors could distribute malicious installers signed with the exposed key is low because only a […]

2 mins read

DDoS attacks over 1 Tbps surged fivefold in the second quarter

Cloudflare says it mitigated more than 800 network-layer distributed denial-of-service (DDoS) attacks exceeding 1 Tbps in the second quarter of the year. Compared with the first quarter, when the company recorded just 130 attacks above 1 Tbps, the latest figure represents a more than fivefold increase. Cloudflare is a major web infrastructure and security firm […]

2 mins read

CISA: Microsoft SharePoint flaw now exploited in ransomware attacks

CISA confirmed today that ransomware gangs have begun abusing a high-severity Microsoft SharePoint remote code execution vulnerability, which has been flagged as actively exploited since early July. Tracked as CVE-2026-45659, this security flaw stems from a deserialization of untrusted data weakness and allows attackers with low privileges to execute arbitrary code on unpatched SharePoint servers. It […]

2 mins read

Cisco warns of high-severity ClamAV flaws with public exploits

Cisco warned of two high-severity vulnerabilities affecting the Secure Endpoint Connector that allow threat actors to crash the ClamAV scanning process in denial-of-service (DoS) attacks. The security flaws (tracked as CVE-2026-20337 and CVE-2026-20338) were found in the ZIP archive parser of ClamAV (Clam AntiVirus), the open-source and cross-platform engine used to scan files for malware. As Cisco explained […]

2 mins read

US and South Korea warn of Gunra ransomware targeting govt agencies

U.S. federal agencies and South Korea’s National Policy Agency warned government and critical infrastructure organizations worldwide to secure their systems against Gunra ransomware attacks. In a Monday joint advisory, they said the ransomware group uses a malware variant based on the Conti ransomware source code leaked in February 2022, in attacks targeting a wide range of industry sectors, from […]

2 mins read

Hackers breached a small Polish energy plant via private APN last year

Hackers used a dedicated mobile gateway to compromise a second facility during the destructive cyberattacks that hit Poland’s energy sector last year. The second target was a small combined heat-and-power (CHP) plant that supplies heat to around 50,000 residents, resulting in the steam turbine and the water treatment system being shut down. The Polish Computer Emergency […]

3 mins read

BdThemes plugins supply-chain hack creates rogue WordPress admins

A threat actor compromised the upstream infrastructure of BdThemes, a developer of premium WordPress web-design tools, and modified a remote JSON feed delivered to administrators’ browsers to create rogue admin accounts. Starting Saturday, the affected BdThemes products were no longer available for download after the WordPress Plugins team closed all of them pending a full […]

3 mins read

OpenAI releases ChatGPT 5.6 Cyber, but it’s only for approved users

OpenAI has developed a new model called “GPT 5.6 Cyber,” designed for vulnerability research, penetration testing, and incident response. OpenAI says GPT 5.6 Cyber is only available to select companies, including Accenture, IBM, Capgemini, Cognizant, EY, KPMG, PwC, NCC Group, and SpecterOps. It’s also rolling out to supported security vendors, including Palo Alto Networks, CrowdStrike, Cisco, […]

2 mins read

New StormEncryptor ransomware used by former Medusa affiliate

A financially motivated threat actor previously associated with the Medusa ransomware operation is now deploying a new ransomware strain called StormEncryptor. Microsoft Threat Intelligence is tracking the actor as Storm-1175 and says the recent attacks were likely preceded by exploitation of an authentication-bypass vulnerability (CVE-2026-18577) in the N-central remote monitoring and management (RMM) tool. Storm-1175 is believed […]

2 mins read

CISA: SonicWall SMA1000 flaws now exploited by ransomware gangs

CISA has confirmed that ransomware gangs have begun exploiting two recently patched SonicWall SMA1000 vulnerabilities, including a maximum-severity server-side request forgery (SSRF) flaw. ​SMA1000 is an enterprise-grade secure remote access gateway used by large corporations, government agencies, and Managed Service Providers (MSSPs) to provide VPN access to internal applications and corporate networks. SonicWall released patches for the two […]

2 mins read