Supply chain security is the practice of treating the suppliers, sub-processors, and managed service providers behind your operations as part of your own attack surface. The discipline is no longer optional in Europe: NIS2 explicitly requires in-scope entities to assess and manage cybersecurity risks across their direct suppliers and service providers, and the ISO 27001:2022 revision elevates the supplier-relationship controls accordingly.
The work runs across the supplier lifecycle. Before contracting, due diligence assesses the supplier's security posture against the risks the relationship will introduce: what data they will hold, what systems they will reach, what regulatory regime they will share. The contract codifies the security expectations as enforceable terms, including incident-notification windows, audit rights, sub-processor consent, and the conditions under which the relationship can be terminated for cause. During the relationship, ongoing monitoring confirms the controls promised at signing are still operating; on termination, the deprovisioning steps ensure access and data are recovered.
The traps are well documented. The supplier register becomes a year-end exercise rather than a live record. The risk assessment is recycled rather than re-evaluated when the engagement changes. The incident-notification clause goes untested until an actual breach exposes it. The Askara Solutions agent keeps each supplier tied to the systems and data it touches, the risks it introduces, and the contractual commitments it has made, so a regulator's question about a specific provider can be answered from one place rather than three.