📝 Notes🔒 SecurityForensicsHashFile hex[Hash] Exam file hex Online viewer https://hexed.it/ In linux with xxd Basic usage Output fa0c ect xxd hello.txt Binary Display Output 00101101 ect xxd -b datafile.txt Hex Upper Case Output FA0C ect xxd -u datafile.txt File signatures https://en.wikipedia.org/wiki/List_of_file_signatures https://www.garykessler.net/library/file_sigs.html binwalkHash base Tools