The United Kingdom’s Foreign Office has confirmed it is investigating a cyber-attack that compromised parts of its government systems, prompting an immediate security response and a review of digital safeguards across departments.

The intrusion was detected during routine monitoring, after which affected systems were isolated as a precaution while specialist teams began assessing the nature and potential impact of the breach.

Officials said there is no indication that sensitive personal data has been exposed, and diplomatic operations continue to function.

The Foreign Office has declined to attribute the attack publicly while the investigation remains ongoing, emphasising that cybersecurity incidents are treated as a matter of national security.

Ministers have briefed Parliament on the situation, describing the response as swift and proportionate.

The incident has reinforced concerns about the growing frequency and sophistication of cyber threats facing governments worldwide.

British authorities have warned that state-linked and criminal actors are increasingly targeting public institutions to disrupt operations, gather intelligence or test defences.

The attack comes as the government advances new legislation and policy measures designed to strengthen cyber resilience and improve coordination across critical services.

Security officials said lessons from the intrusion will inform further upgrades to government systems and staff training, while cooperation with international partners continues to counter evolving digital threats.

The investigation remains active as authorities work to establish how the breach occurred and to prevent similar incidents in the future.