(b) to address any emergency security concerns. or (c) if required to do so by a governmental or regulatory authority or as a result of a change in applicable law. We may even suspend or terminate the Services entirely, in which event we will notify you in advance unless extenuating circumstances, such as safety or security concerns, prevent us from doing so. </p> <p>6.4 Changes to the Service. Aura continually changes and improves the Service.