What are the Bible / Torah Codes?

"The Bible code, also known as the Torah Code, is a method described as a "hidden code" of selecting Equidistant Letter Sequences from within the 3,300 year old Hebrew Bible that form words and phrases that demonstrate foreknowledge and prophecy. The study and results from this cipher have been popularized by Michael Drosnin's book The Bible Code."
http://torah-codes.net/

"Six months before the next presidential elections are scheduled to be held, Rabbi Matityahu Glazerson, an expert in Bible codes, made a bold prediction; President Trump will win his bid for reelection."
https://www.israel365news.com/152459/torah-codes-reveal-trump-wins-re-election-in-2020/

"Torah Codes constitute one of the dimensions of the hidden light of Judaism. The teachings of Judaism come from the written tradition and the oral tradition, on Mount Sinai over 3300 years ago. The written tradition is the Torah consisting of the five books of Moses: Genesis, Exodus, Leviticus, Numbers, and Deuteronomy, all written in the language of biblical Hebrew.

The open part of the oral tradition was written down not quite 2000 years ago and is found in the Talmud, written in the language of Aramaic. The less open part, the hidden light, is carried by both an oral tradition and written tradition called the Kabbalah. One of the dimensions of Kabbalah is Torah Codes"
http://realbiblecodes.com/

"The hidden code is said to have been cracked centuries ago by mathematically selecting letters from the texts which appear to create words, but was populated by the documentary ‘The Torah Codes: End to Darkness’ by filmmaker Richard Shaw in 2015."
https://www.express.co.uk/news/weird/1314577/end-of-the-world-bible-torah-code-hidden-2021-doomsday-prophecy-rabbi-jesus-christ-god-spt

"Glazerson relies on a concept known as Bible Codes, sequences, clusters and complex word associations found in the Torah and believed by some to contain hidden messages that were placed there by God."
https://m.jpost.com/judaism/Bible-codes-may-have-foretold-an-Iranian-attack-within-the-year-616051

"According to some researchers, the Codes foretell names and places of events throughout human history: Holocaust, Sadat, AIDS. Torah Codes cannot tell us information we don't already know. But what they do tell us is that the author of the Torah knew minute details of world history, to our very age.

The concept of "encoded information" and a "hidden text" in the Torah is a longstanding Jewish tradition."
https://www.aish.com/atr/Torah_Codes_Explained.html?mobile=yes