Diplo thinks Taylor Swift is "very strategic with her friends".
The DJ - whose real name is Thomas Wesley Pentz - believes the 'Shake It Off' hitmaker is very clever when it comes to who she does and doesn't befriend.
He shared: "Taylor Swift is very strategic with her friends and enemies. And I know lots of secrets."
However, Diplo refused to expand on his claim, joking that doing so would put his safety at risk.
He told the February edition of GQ magazine: "I can't divulge, but I know a lot of stuff about her and I'm scared. I'm scared for my life."
Meanwhile, it's been speculated Diplo's ex-girlfriend Katy Perry is to take aim at Taylor at the Super Bowl with her new song 'She's So Creepy'.
The song is thought to be a retaliation to Taylor's 'Bad Blood', which appears on her album '1989' and exposes the details of their supposed feud.
Taylor, 25, has never admitted her song is about Katy, but she's said of the unidentified rival: "We're straight up enemies. And it wasn't even about a guy!
"It had to do with business. She tried to hire a bunch of people out under me."