What does integrity in information security ensure?

Integrity in information security focuses on maintaining and assuring the accuracy and consistency of data over its entire lifecycle. It ensures that information is not improperly modified or destroyed, thereby preserving its authenticity and reliability. This means that any data that is created, stored, or transmitted remains unchanged unless authorized modifications are made by those with the appropriate permissions.

Maintaining integrity is crucial, as it helps prevent unauthorized alterations that could lead to misinformation, loss of data quality, or other significant security risks. It is a fundamental principle within the broader framework of information security, alongside confidentiality and availability. By ensuring integrity, organizations can trust that their data is a reliable basis for decision-making and operations.

The other answer choices focus on different aspects of information security. Access to information in a timely manner pertains to availability, which ensures that authorized users have the access they need when they need it. Protection against unauthorized access relates to confidentiality, ensuring that sensitive information is only accessible to those with the right permissions. Lastly, enabling information sharing among users highlights the need for collaboration and communication but does not directly relate to the integrity of the data itself.