How to prevent Messages app from displaying texts on iMac when logged out?

Messages app sharing messages with my iMac even when logged out. This is a massive security problem and support aren't being any help at all.

As you can see below, my text messages on my phone are being displayed on my iMac at login, and this is even when I am logged out (you can see it is both asking me to login AND displaying my texts, which I have blurred)

I have turned off forwarding between devices.

I have turned off iMessages

I have logged out of Messages

I have turned off messages in iCloud

Every time I get a text on my phone messages attempts to launch on my taskbar:

Third from the left.

This is a huge violation of my privacy and safety, and I can't even delete the app. Your advice is appreciated.

[Edited by Moderator]

Original Title: Messages App displaying my phone's texts on my iMac, even when logged out, and attempting to launch everytime I receive a text message.

Posted on Oct 28, 2026 10:15 PM

1 reply

JAppleseed84 Author

Level 1 (4 points)

Oct 28, 2026 11:07 PM in response to JAppleseed84

Resolved, a glitch due to having Airplay turned on between devices.

Really think they should fix this, it's an unexpected behaviour and could endanger people in DV situations having their messages shared on other devices without their consent or awareness.