The PGA of America has been hijacked.

PGA officials have been locked out of important files involving the PGA Championship at Bellerive and the upcoming Ryder Cup following a cyberattack on the organization’s servers, according to Golfweek.

While attempting to view PGA banners, logos and signage, staff received a message: “Your network has been penetrated. All files on each host in the network have been encrypted with a strong algorithm [sic].

“This may lead to the impossibility of recovery of certain files,” the hijackers warned.

The encrypted files contain creative materials for the PGA Championship and the Ryder Cup, including various promotional banners and logos. Development projects on logos for future PGA Championships also were compromised.

The hackers provided a Bitcoin wallet number — which cannot be traced back to a specific person or entity, making it difficult to identify suspects — but did not specify the amount they are seeking. They also sent an email from an encrypted address offering to decrypt two files of their choice, taunting and asserting their dominance over the staff.

The PGA of America will not negotiate with the criminals, per a source to Golfweek. And a spokesperson for the company declined to comment on the situation because it was still an ongoing investigation. Outside IT specialists have been brought in.