Phone made GSM call on its own without interaction

The same thing happened with my parents' phones several weeks ago, although they use some old android devices and the call was in logs of both smartphones. In my case though all devices are hacked in our house since more than 6 years now.
Go to Settings > Security & privacy > Exploit protection > Hardened memory allocator and see if it's enabled.
I have Pixel 8 running on GOS completely compromised and it always stays disabled. I can enable it, but once I quit settings and re-enter them again this option is always disabled.

zxc276 I have Pixel 8 running on GOS completely compromised and it always stays disabled. I can enable it, but once I quit settings and re-enter them again this option is always disabled.

That sounds alarming! Is it possible to share a video of that?

de0u My Pixel 6 Pro and Pixel 7 Pro both do self-disable HMA. Video (expires after 3 days)

crazysally Thanks for posting the video. That makes it clear that a misunderstanding is in progress for at least some users.

The toggle does not globally disable or globally enable the hardened memory allocator! Note that the text says "disabled" and "enabled", not "disable" and "enable". Note also that the "disabled" list says "No apps". That is because that setting page displays two lists of apps: the list of apps with the hardened allocator disabled (ideally empty) and the list of apps with the hardened allocator enabled (ideally a long list).

Toggling the indicator toggles which list of apps is displayed (that is all). Going back a page and then forward causes the disabled-apps list to be displayed.

The video shows that the hardened allocator is disabled for zero apps (good) and enabled for many apps (good).

de0u That makes total sense if I actually engage my brain and think about it for 1 second ... lol. I just saw your prior (alarming!) message and looked at my phone and said: 'hey! mine does that too!' 😱

Thanks for the fast reply!

Thanks for clarification on that particular feature. Nevertheless, my devices are fully compromised including Pixel 8.

Are we sure phone numbers discussed here aren't simply being spoofed by scammers?

geb2
Not my phone. My parent's smartphone did that, calling the phone of the other parent around 2 months ago. They have some old Android devices (not Pixels, not GOS) that are long end-of-life.
I have seen thousands of pieces of evidence over the last 6 years that all devices are hacked in our house. Not 100% of them are, of course, correct, as can be seen above, but I'd say around 99%.
In your case, it's important if you have actually witnessed that your smartphone is actually calling somebody's phone on its own. If not, this can be some other thing, such as SIM spoofing, as it was pointed out above.
Check out this link: https://www.fcc.gov/consumers/guides/cell-phone-fraud
If you haven't seen your smartphone actually calling some number without your action, then your device is very likely to be clean. If you have it, then I don't know what it is. You cannot check it if it's compromised on your own; you'd need to get some digital forensics done, and even then there is no 100% guarantee. Anyway, most people say these devices are very secure.

There are also spying apps available. If somebody had physical access to your smartphone, maybe this could be a reason. Although I don't know if the GOS security model would allow an app to remotely control somebody's calls.

You guys are going a bit too far with this. I have been frequently scouring my settings and checking running processes for close to two years now to discover anything out of place and lo and behold, no mystery apps hogging up my internet traffic or hijacking sensors without explanation. You first need to have a basic understanding of how an Android works before you go on to make bold claims of observations of hostile activities on your device supported by exactly zero proof.

May I kindly ask what you expect? What you want to hear?

geb2
Thank you.

Let's not jump to too many conclusions here. I would argue that this is a software or firmware bug. If it was an exploit or similar, why would they make the call? It would clearly set of an alarm in the owner of the device (you) and the recipient. That would make the bad actor to reveal themselves, and ruin their access. So I would think this is a unlikely scenario.