"What does it mean?" Kylie asked.

Ethan was gazing into space.

Seeing that, Kylie waited in silence for his answer.

It was apparent that Kylie's phone was installed with a virus program. This program could interfere with Kylie’s mobile phone signal, so no one could get through to her during this time.

If the virus was installed by Stephen, his purpose must be to cut off Kylie's communication with the outside world, so she could never escape.

If the virus was installed by Tory, his purpose should be to hide his location. However, in that case, Ben shouldn't have been able to get through to Kylie.

Who had installed this...