How do I stop remote access? I have a Samsung Galaxy 10. Somehow, my ex has gained access and is able to see my texts and video calls in Whatsapp and Telegram, etc. He is listening to or watching every conversation. I became suspicious when he mentioned details from private conversations. He admitted to mirroring my device but will not provide details and says he has stopped. However, I believe it is still happening. When I am on video calls in WhatsApp and Telegram, the calls freeze and it seems the signal is bad even when I am on WiFi or have full bars. How can I stop this? Please help.
It all depends on how far your ex went with installing unwanted software on your device.
In most cases a factory restore would remove unwanted software.
Just make sure to copy your important data (photos/messages/etc.) somewhere else before doing it.