Ransomware protection for Essex's hospitals, NHS trusts, and businesses

Most Essex providers already run a firewall, an endpoint tool, a backup product, and a monitoring console. Ransomware still gets through the seams between them, and in a multi-site trust those seams multiply across hospitals and shared services. We are not a fourteenth console. We are one platform that owns the whole lifecycle of an incident: seeing it, understanding it, stopping it, and undoing the damage.

For a trust running Broomfield, Basildon, and Southend as one organization, that means network, host, identity, and deception signals are correlated into a single picture across every site. A living-off-the-land intrusion that would evade any one sensor still surfaces, because we watch the relationships between events, not just the events on their own.

The 2024 Synnovis attack is the clearest case in UK healthcare of a supplier breach reaching patients it never directly touched. Qilin encrypted a shared pathology provider in London, and the fallout reached Mid and South Essex, where the trust confirmed 2,380 of its patients had records in the stolen data. An endpoint tool watching individual laptops would never have seen that coming, because the risk arrived through a trusted data connection, not a phishing click on an Essex device.

We treat third-party and shared-service links as first-class parts of the attack surface. We watch the traffic across them for the large, abnormal transfers that signal exfiltration and for the lateral movement that signals an intrusion using a trusted connection as a doorway. For an Essex trust that depends on shared pathology, imaging, and managed services, that is the difference between learning about a breach from a supplier months later and catching the abnormal flow while it happens.

A large acute trust runs thousands of connected medical devices across its sites, from infusion pumps and patient monitors to imaging controllers and lab analyzers. Most cannot run an endpoint agent, so a conventional EDR tool is blind to the majority of the real attack surface, and attackers target exactly that gap. We protect those devices at the network boundary and, on a confirmed threat, quarantine a compromised device at the network layer rather than shutting it down in a way that interrupts care. Across three hospitals serving more than a million people, that distinction is the line between a security action and a patient-safety event.

When a verdict is confident and the action is safe, we act on our own: block the malicious source, revoke the compromised session and credentials, and microsegment the affected host, segment, or supplier connection so the attacker cannot move sideways across sites. We aim to do this within about thirty seconds, the window where an attack is still a contained incident rather than a trust-wide outage. Anything that could affect patient care waits for one-click human approval, with the source already blocked in the meantime.

Recovery is a first-class outcome, not an afterthought. We keep verified, immutable, air-gapped backups that ransomware cannot alter or delete, because attackers go for ordinary backups first. When it is time to restore, we confirm a backup predates the attack, check it is clean, and bring systems back in dependency order: identity and network, then EHR and PAS, then pathology, imaging, and pharmacy. That is what turns a double-extortion crisis into a controlled recovery, and it removes the leverage that makes paying a ransom tempting.

Essex NHS organizations and businesses hold data they cannot risk handing to a third party or moving offshore. Immune can run as a managed service, in a hybrid model, or entirely on-premises and air-gapped, including the analysis engine. For an Essex trust or business, that means ransomware resilience without moving patient or customer data outside the UK, and every detection, decision, and recovery step is written to a tamper-proof, hash-chained audit log that supports your NHS DSPT, UK GDPR, and ICO obligations.