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State-backed phishing attacks targeting military officials and journalists on Signal

German security authorities are warning that a likely state-backed hacking group is engaged in attempts at phishing senior political figures, military officials, diplomats, and investigative journalists across Germany and Europe via Signal. The authorities also noted that while these attacks are likely perpetrated by a state-controlled cyber actor, there’s nothing stopping non-state actors and financially motivated cybercriminals from using the same approach. The two approaches The attackers are approaching targets directly inside the messaging app … More → The post State-backed phishing attacks targeting military officials and journalists on Signal appeared first on Help Net Security.
http://news.poseidon-us.com/TQpLx0

A clever quantum trick brings practical quantum computers closer

Quantum computers struggle because their qubits are incredibly easy to disrupt, especially during calculations. A new experiment shows how to perform quantum operations while continuously fixing errors, rather than pausing protection to compute. The team used a method called lattice surgery to split a protected qubit into two entangled ones without losing control. This breakthrough moves quantum machines closer to scaling up into something truly powerful.
http://news.poseidon-us.com/TQpKRh

Poland’s energy control systems were breached through exposed VPN access

On 29 December 2025, coordinated cyberattacks unfolded across Poland’s critical infrastructure, targeting energy and industrial organizations. The attackers struck numerous wind and solar farms, a private manufacturing company, and a heat and power (CHP) plant, but failed to negatively affect energy generation or distribution. Poland’s national computer emergency response team, CERT Polska, assessed that all of the incidents were carried out by the same threat actor and were purely destructive in nature. Analysts say the … More → The post Poland’s energy control systems were breached through exposed VPN access appeared first on Help Net Security.
http://news.poseidon-us.com/TQpCqL

CISA orders US federal agencies to replace unsupported edge devices

The US Cybersecurity and Infrastructure Security Agency (CISA) issued a new binding operational directive aimed at reducing a long-standing cyber risk across federal networks: outdated “edge devices” that are not longer supported by vendors and aren’t receiving timely security updates. By “edge devices”, CISA means load balancers, firewalls, routers, switches, wireless access points, network security appliances, IoT edge devices, software defined networks and other physical or virtual networking devices responsible for routing network traffic and … More → The post CISA orders US federal agencies to replace unsupported edge devices appeared first on Help Net Security.
http://news.poseidon-us.com/TQpCnR

Ransomware attackers are exploiting critical SmarterMail vulnerability (CVE-2026-24423)

For the third time in two weeks, CISA added a vulnerability (CVE-2026-24423) affecting SmarterTools’ SmarterMail email and collaboration server to its Known Exploited Vulnerabilities catalog, and this one is being exploited in ransomware attacks. A glut of SmarterMail vulnerabilities On January 26, the US cybersecurity agency listed CVE-2025-52691 (a unrestricted upload of file with dangerous type vulnerability) and CVE-2026-23760 (an authentication bypass flaw) affecting SmarterMail in the KEV catalog. WatchTowr researchers analyzed and shared technical … More → The post Ransomware attackers are exploiting critical SmarterMail vulnerability (CVE-2026-24423) appeared first on Help Net Security.
http://news.poseidon-us.com/TQp1LZ

Claude Opus 4.6 improves agentic performance and model safety

Claude Opus 4.6 builds on earlier releases with improved coding performance and more consistent behavior in complex tasks. Opus 4.6 finds real vulnerabilities in codebases better than any other model (Source: Anthropic) According to Anthropic, the model applies more deliberate planning during task execution, sustains agent-driven workflows over longer periods, and operates with greater consistency across large codebases. It improves code review and debugging by identifying errors in its own output and correcting them during … More → The post Claude Opus 4.6 improves agentic performance and model safety appeared first on Help Net Security.
http://news.poseidon-us.com/TQp1Jz

MintMCP’s governance platform helps organizations deploy, monitor, and secure AI agents

MintMCP launched its enterprise governance platform for AI agents and MCP servers, enabling teams to deploy, monitor, and secure agent infrastructure at scale. The platform enables organizations to deploy, monitor, and secure AI agents at scale while maintaining complete audit trails and policy enforcement. As enterprises race to deploy AI agents, security teams face a growing blind spot. These agents operate with elevated privileges: accessing databases, APIs, and internal systems. At the same time, most … More → The post MintMCP’s governance platform helps organizations deploy, monitor, and secure AI agents appeared first on Help Net Security.
http://news.poseidon-us.com/TQnwXl

February 2026 Patch Tuesday forecast: Lots of OOB love this month

Valentine’s Day is just around the corner and Microsoft has been giving us a lot of love with a non-stop supply of patches starting with January 2026 Patch Tuesday. The January releases addressed 92 vulnerabilities in Windows 11 and Server2025, as well as 79 vulnerabilities for Windows 10 and its associated servers. We also saw updates for legacy 2016 versions of Microsoft Office and even a SQL Server update. But these patches came with some … More → The post February 2026 Patch Tuesday forecast: Lots of OOB love this month appeared first on Help Net Security.
http://news.poseidon-us.com/TQnprM