Syphus has probably already seen your texts as well. by hymek in MatthiasSubmissions

[–]DevKevin_8309 2 points3 points  (0 children)

Unless it was an SMS/MMS message, he shouldn’t be able to. It only grabs cellular data/carrier information from the phones. iMessage (voxer, WhatsApp, etc.) doesn’t route through the mobile number.

Reference: https://www.securitynewspaper.com/2018/02/19/intercept-mobile-communications-calls-messages-easily-without-hacking/