What you can do without an account
Browse the catalog, read the guides and save a title without entering an email address. My List and the country preference are kept in this browser. They are not synchronized to an online account.
What a watch click opens
Watch now opens JustWatch to help you find viewing choices. A service you choose there applies its own account and playback conditions. The title page tells you when the link leaves 123Chill.
Unexpected requests
Movie browsing here does not require a card payment, an APK installation or permission to send notifications. If a different page requests something, check the address and what you are trying to do before continuing. There is no blanket safety guarantee for unrelated websites sharing a name.