Deal with updating your devices with latest security patches like you deal with your personal hygiene
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If you have a new Samsung phone or Google Pixel phone, you should disable VoLTE and WiFi calling until your device is patched. Otherwise, attackers could take over your phone without you even knowing. Yikes. The latest March security bulletin that just rolled out for the Pixel 7 line fixes this, but the Pixel 6 line has not gotten the update, yet, but should soon. Samsung... 👀
https://www.xda-developers.com/google-hackers-samsung-pixel-phone-number-hack/