What is the meaning of Integrity?

Steadfast adherence to a strict moral or ethical code.

The state of being wholesome; unimpaired

The quality or condition of being complete; pure

With regards to data encryption, ensuring that information is not altered by unauthorized persons in a way that is not detectable by authorized users.

The ability of systems to provide timely warnings to users when they should not be used for navigation.

Trustworthiness; keeping one's word.

Source: wiktionary.org