Did Hungarian authorities announce an "Orange Warning" after a dangerous alien creature was seen in the country? No, that's not true: There was no active warning on Hungarian authorities' website at the time of the writing and the "Orange Warning" is used by the National Weather Service.
The claim appeared in a video (archived here) on TikTok on January 13, 2024, under the title (translated from Hungarian to English by Lead Stories staff) "Attention! An unidentified creature was discovered!" It began (as translated):
Shocking developments in Hungary. The appearance of an independent alien entity on the property of a Hungarian citizen disturbed the country. The identity of the mysterious creature is yet unknown, but according to assumptions it escaped the Secure Contain Protect organization. And it poses a threat to every citizen. The relevant authorities immediately issued an orange alert in the country, emphasizing the potential danger posed by the entity.
This is what the post looked like on TikTok at the time of writing:
(Source: TikTok screenshot taken on Wed Jan 17 15:52:40 2024 UTC)
The "orange warning" (archived here) is used by the Hungarian Meteorological Service. On the day (archived here) the video was published, there was no active warning published by the Service. No alien warning is available on the National Police (archived here) or the National Directorate for Disaster Protection websites (archived here).
The video also mentions that the alien escaped the "Secure Contain Protect" organization. This may be a reference to the SCP Foundation, a collaborative fantasy writing website. In their introduction (archived here), they clearly state that the stories are fantasy and written by their community of users.