Nothng on the internet is secret or secure mate.
You can't even be sure face to face, let a lone with someone who someone else you dont really know vouches for.
Even pms etc are easily read by others.
how
anydata that is stored can be accessed just need to know how and have the tech to do it did you know they can even recover deleated pictures on your phone
even text messages?
dont know about the content but a record of who and when it was sent will be recorded the same with smart phones they even give the location and time the photo was taken so be carefull
All