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Headlines from leading security publications and research teams, refreshed automatically. Choose a category to narrow them.

Updated automatically every 6 hours. Last update 2 Nov 2026, 01:28 IST · 13 sources · Get these by email

Policy, regulation & law enforcement From industry concern to practical action: the value of working with regulatorsHow industry, the NCSC and the FCA worked together to help organisations share information while protecting market integrity UK NCSC · United Kingdom · 27 Oct 2026
Applications & supply chain Critical security issue affecting PHPUpdated: The NCSC is encouraging UK organisations to take immediate action to mitigate a security issue affecting PHP (CVE-2026-109618 and CVE-2026-109619). UK NCSC · United Kingdom · 21 Oct 2026
AI security Introducing a new AI chapter in the NCSC research problem bookA revolution is underway at the intersection of AI and cyber security. UK NCSC · United Kingdom · 20 Oct 2026
Policy, regulation & law enforcement Post-quantum updates to our TLS guidanceThe NCSC publishes its recommendations for configuring post-quantum cryptography in TLS. Now is time to migrate. UK NCSC · United Kingdom · 15 Oct 2026
Policy, regulation & law enforcement Using TLS to protect dataRecommended profiles to securely configure TLS for the most common versions and scenarios, with additional guidance for managing older versions. UK NCSC · United Kingdom · 15 Oct 2026
Threats, ransomware & breaches Help the NCSC understand how organisations approach external attack surface riskWe're looking to hear from people involved in evaluating, selecting or adopting EASM. UK NCSC · United Kingdom · 12 Oct 2026
Policy, regulation & law enforcement China-linked malicious actors called out by UK and international partners for targeting sensitive data globallyJoint advisory with international partners highlights malicious targeting of organisations from a range of sectors across the globe. UK NCSC · United Kingdom · 8 Oct 2026
Policy, regulation & law enforcement Incident affecting ASOS customersASOS has said it is investigating a cyber incident and that some customer personal information may have been accessed. UK NCSC · United Kingdom · 6 Oct 2026
Network & security devices Exploitation of vulnerabilities affecting Citrix NetScaler ADC and Citrix NetScaler GatewayThe NCSC is urging UK organisations to promptly mitigate vulnerabilities affecting Citrix NetScaler ADC and Gateway, two of which are being actively exploited. UK NCSC · United Kingdom · 28 Sep 2026
AI security One does not simply defend agenticallyDefenders can’t use AI in the same way attackers can, but there’s much they can do to unlock the potential of agentic cyber defence. UK NCSC · United Kingdom · 21 Sep 2026
Policy, regulation & law enforcement Cyber Adversary Simulation (CyAS): scheme documents now availableOur view of good cyber adversary simulation – and how assured providers can deliver it. UK NCSC · United Kingdom · 17 Sep 2026
Threats, ransomware & breaches Adversary simulation: what you need to knowAdversary simulation ('red teaming') tests your ability to prevent, detect and respond to cyber attacks. UK NCSC · United Kingdom · 17 Sep 2026
Threats, ransomware & breaches Iranian cyber targeting of dissidents, activists and journalistsAdvisory on CHOSEN BRICK malware, including technical analysis and advice to help individuals and organisations protect themselves. UK NCSC · United Kingdom · 15 Sep 2026
Threats, ransomware & breaches UK and allies expose spyware used by Iranian state actors to target dissidents, activists and journalistsUK and allies provide advice to help organisations and individuals at risk detect and counter the threat from CHOSEN BRICK malware. UK NCSC · United Kingdom · 15 Sep 2026
AI security The hidden risks of shadow AIUnderstanding why staff use unapproved AI tools is key to managing the security challenges they can create. UK NCSC · United Kingdom · 7 Sep 2026
OT, ICS & IoT Disruptive cyber activity highlights risk from internet-exposed systems and edge devicesOwners of operational technology encouraged to address avoidable vulnerabilities, and build long-term cyber resilience. UK NCSC · United Kingdom · 27 Aug 2026
AI security Managing the cyber risk of agentic AIUse safeguards, sandboxing and active oversight to realise the benefits of autonomous systems while limiting the unintended activity. UK NCSC · United Kingdom · 20 Aug 2026
Vulnerabilities & exploits How BitLocker PINs help protect your data and devicesUsing a PIN mitigates many BitLocker vulnerabilities. Make sure you’re ready for the next one... UK NCSC · United Kingdom · 13 Aug 2026
Policy, regulation & law enforcement Help shape the future of resilient private 5GThe NCSC wants to collaborate with organisations developing technologies and approaches for secure, resilient and deployable private 5G UK NCSC · United Kingdom · 12 Aug 2026
OT, ICS & IoT Water sector example added to the NCSC’s Secure connectivity principlesNew guidance is the first content authored by the Industrial Control System COI to appear on ncsc.gov.uk. UK NCSC · United Kingdom · 11 Aug 2026

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