ISO 27001 is an internationally recognized standard that specifies the requirements for establishing, implementing, maintaining, and continuously improving an information security management system (ISMS) within an organization. An ISO 27001 assessment is an evaluation of an organization's compliance with the standard. 

ISO 27001 assessments typically involve a review of an organization's policies, procedures, and technical controls related to information security. The assessment is conducted by an independent auditor who is qualified and experienced in information security management. 

The assessment process typically involves the following steps: 

• Scoping - the auditor works with the organization to identify the scope of the assessment, which includes defining the boundaries of the ISMS and identifying the assets that need to be protected. 
• Gap analysis - the auditor compares the organization's existing policies, procedures, and controls against the requirements of the ISO 27001 standard, identifying any gaps or areas for improvement. 
• Risk assessment - the auditor helps the organization identify and assess the risks to its information assets, based on the likelihood of an event occurring and the potential impact of that event. 
• Remediation - the organization takes action to address any gaps or deficiencies identified in the assessment, by implementing new policies, procedures, or controls. 
• Certification - once the organization has addressed any gaps or deficiencies, the auditor conducts a final review to confirm that the organization is compliant with the ISO 27001 standard. If the organization meets the requirements of the standard, it is awarded an ISO 27001 certificate. 

ISO 27001 assessments provide organizations with an independent verification of their information security management practices and can help them identify areas for improvement. The certification can also be used to demonstrate to customers, stakeholders, and regulators that the organization takes information security seriously and has implemented appropriate controls to protect its assets.