You see a blue color sticker on certain physical assets. This signifies that the asset is high critical and its failure will affect a group/s/project's work in the organization. A blue color sticker is a type of label that indicates the level of criticality of an asset, which is a measure of how important an asset is for the organization's operations and objectives. A high critical asset is an asset that has a significant impact on the organization's activities, and its loss or damage would cause major disruption or loss of service. A blue color sticker also implies that the asset requires a high level of protection and security, and should be handled with care. Reference: : CQI & IRCA ISO 27001:2022 Lead Auditor Course Handbook, page 36. : [ISO/IEC 27001 Brochures | PECB], page 6.