MANILA - Philippine Airlines warned the public on Friday against a phishing site that it said is circulating a "fake advertisement" supposedly offering a chance to win plane tickets.

In an advisory on its official Facebook page and website, PAL said opening the site where the spurious ad appears places personal data of those accessing it at risk.

The airline company described the fake ad as showing a PAL logo with the phrase 'Home in the Sky' and lures "netizens to reply to several questions in exchange for a chance to win plane tickets."

"We urge everyone NOT TO open the site as doing so will compromise your personal data," the PAL advisory reads.

"Our Information Systems Department has classified it as a phishing site designed to capture personal information," it added.

PAL said it is coordinating with authorities regarding the incident, and warned those behind it "to desist from carrying out this illegal act."

It reiterated that all official advertisements of the company are posted on its official website, and Facebook page.

Banks and even government agencies have also issued warnings in the past against phishing activities which have spiked amid the growing digital transformation across many sectors globally.