What is the Baconian cipher?
Francis Bacon's cipher writes each letter as five symbols that are either A or B, like AAAAA for A and AAAAB for B. The two symbols can be hidden as anything with two forms: bold and normal letters, two fonts, capitals and lowercase, or 0 and 1.
The classic version uses 24 letters, with I and J sharing a code and U and V sharing a code. The modern version gives all 26 letters their own code. If the result looks wrong, try the other alphabet.
Example
AAABA AAAAA AAABA AABBB AABAA decodes to CACHE.