If the official risk level is adjusted to low risk, then your trip code asterisk will also automatically disappear after 14 days.

Big data is a collection of data that cannot be captured, managed, and processed within a certain timeframe with conventional software tools, and is a massive, high-growth, and diverse information asset that requires a new processing model in order to have stronger decision-making, insight discovery, and process optimization capabilities. Big data is characterized by five key features: large volume, high speed, diversity, low value density, and authenticity. It does not have statistical sampling methods, it just observes and tracks what happens. The usage of big data tends to be the use of predictive analytics, user behavioral analytics, or certain other advanced data analytics methods.