Can't attach image after upgrade to macOS Ventura

[nzagorec]

This is not a bug report to your software!

After an upgrade to macOS Ventura hdiutil attach filesystem.img returns hdiutil: attach failed - no mountable file systems.

When I double click the img file I get this:

Could you confirm having the same issue on your side? Do you have any idea how to fix it?

Everything worked fine on Big Sur and Monterey.

Thank you!

[magicmicros]

Thanks for the report.
I am not able to confirm this here, as I'm still on Monterey.
Perhaps some others will chime in?

I Googled around a bit, but didn't get any wiser.
I suspect this is something security related.