↑ Bessonette, Colin (ngày 16 tháng 11 năm 1998). “Q&A on the News”. The Atlanta Journal-Constitution. tr. A2. A CIA analyst working on his own time has solved "the lion's share" of it, but it hasn't been completely decoded, CIA spokesman Mark Mansfield told Q&A. He said the best way to describe the sculpture is to say it incorporates natural building materials native to America and includes an encoded copper screen. When and if someone completely solves the message, a decision will be made about releasing it to the public, "but we're not at that point yet," Mansfield said.
↑ Zetter, Kim (ngày 20 tháng 11 năm 2014). “Finally, a New Clue to Solve the CIA's Mysterious Kryptos Sculpture”. Wired. Truy cập ngày 25 tháng 11 năm 2014. in 2006, Sanborn realized he had also made an inadvertent error, a missing "x" that he mistakenly deleted from the end of a line in passage 2, a passage that was already solved
