New partnership to strengthen healthcare cybersecurity in the Leiden region

About Sleutelnet

Sleutelnet is one of the most advanced healthcare cooperatives in the Netherlands. The organisation connects more than 30 healthcare providers in and around Leiden and enables them to collaborate on shared challenges and innovations.

A new focus: infostealer detection

As part of this partnership, Sleutelnet is introducing Passguard as a managed service to its participants.
Passguard provides continuous monitoring for infostealer malware, which is malicious software designed to extract credentials, session tokens and sensitive data from infected devices. These infections often go unnoticed while exposing systems, accounts and networks to further compromise.
Through this collaboration:

• Sleutelnet offers Passguard to its member organisations

• Passguard detects and monitors infostealer-related exposures

• Sleutelnet stays informed on developments, analyses findings and shares relevant insights within the network

This setup ensures that participating organisations are not only protected individually, but also benefit from shared visibility and coordinated response.

Why this partnership makes sense

Infostealers are not an isolated problem. In practice, a single infection can impact multiple organisations, especially in tightly connected sectors like healthcare where vendors, systems and users overlap.
Despite this risk, active monitoring for infostealers is still uncommon at the individual organisation level.
That is exactly where this partnership adds value.
By approaching infostealer detection collectively:

• risks can be identified earlier

• patterns across organisations become visible

• and the overall resilience of the region improves

Because ultimately, a network is only as strong as its weakest link.

Strengthening the region together

With this partnership, Sleutelnet and Passguard take a concrete step toward improving cybersecurity across the Leiden healthcare region.