Aaron Wilson of National Football Post first reported the news.
Bucannon was named an Associated Press first-team All-American during his final college season, leading the Pac-12 with 109 tackles, while also tallying six interceptions.
What also stands out about Bucannon is his size, as he is 6-1 and 211 pounds, as noted here by colleague Mike Reiss.
The Patriots may well consider adding safety depth during the draft, as they are thin in terms of experience beyond Devin McCourty.
Bucannon had an impressive showing at the combine, running a 4.49 40 and jumping 36.5 inches in the vertical leap. He is the third-ranked safety and 45th-best prospect overall according to ESPN's Scouts, Inc.