The ISO 27001 standard establishes a series of elements that must be taken into account to implement an information security management system. Here we will mention some of them and explain what they consist of:

Risk assessment: Identification and evaluation of information security risks.
Information security policy: Establishing a clear and documented security policy.
Information Security Organization: Assigning Responsibilities for Managing Security.
Asset management: Identification, classification and protection of information assets.
Access control: Implementation of measures to authorize access to assets.
Cryptography: Use of encryption techniques to protect information.
Physical and environmental security: Implementation of measures to protect assets against physical and environmental threats.