@usergyFG3PygWB This is caused when you download (either directly or inadvertently) something which has malicious intents.
Are these possibly Samsung Internet browser pages? You should check to see which apps have been opening the browser. You can determine this by:
- Open Samsung Internet
- Click the hamburger menu in lower right
- Click on Privacy
- Scroll down and click on Block apps from opening internet
- If you notice an unknown app in the list or an app which should not be opening the browser, disable it or delete it.