Recently, Indonesian leader Prabowo Subianto believed he was a private conversation with US President Donald Trump at the Gaza peace summit in Egypt.
However, a hot-mic incident revealed Prabowo asking Trump to organize a call with his son Eric, both of whom hold positions at the family business.
This was just one in a series of gaffes committed by world leaders thinking they're off the record.
Below are five other noteworthy blunders:
At a military parade in Beijing in early autumn, China's leader Xi Jinping and Russia's head Vladimir Putin were recorded discussing organ transplants as a method for prolonging life.
"Vital organs can be continuously replaced. The more you extend your life, the more youthful you get, and you can even reach eternal life," Putin's interpreter was recorded stating.
Xi, who was off camera, answered in Chinese: "Experts forecast that in the current era people may reach 150 years old."
Dialogue recorded from Chinese president Xi Jinping and Russian leader Vladimir Putin
Ex-Australia border protection chief Peter Dutton faced criticism in 2015 when he made light about the situation of people in the Pacific experiencing ocean encroachment.
Dutton was conversing with then-prime minister Tony Abbott, who had just returned from environmental talks with regional heads in Port Moresby.
Noting that a migration discussion was running on "delayed schedule", Abbott replied: "We had a similar situation up in Port Moresby."
Dutton commented: "Time doesn't mean anything when you're about to have the ocean reaching your home."
The comments provoked anger from regional nations and climate activists, while the political opponents called for Dutton to apologise.
Peter Dutton overheard joking with Tony Abbott about rising sea levels
While serving as UK PM Gordon Brown was campaigning in 2010, he faced a constituent who challenged him on migration and the economic situation.
Remaining connected to a Sky news microphone when he entered the car, Brown was recorded stating: "That went terribly – they should never have put me with that individual. Whose idea was that? Absurd."
Asked what she had said, he replied: "Everything, she was just a bigoted woman."
The scandal dominated headlines for weeks and Brown ultimately lost the political race.
Ex-American leader Barack Obama was in conversation at the G20 summit in Cannes in 2011 with France's leader Nicolas Sarkozy when their remarks about Israeli leader Benjamin Netanyahu were captured by a active recording device.
Sarkozy said: "I cannot bear Netanyahu. He's a liar."
Per a account from a translator quoted by Reuters, Obama replied: "You've had enough but I have to deal with him more often than you."
A classic recording incident from then US presidential candidate George W. Bush occurred when he made a disparaging remark about a reporter from The New York Times.
The GOP candidate was didn't realize that a microphone was live when he turned to Dick Cheney at a political event and remarked, "That's Adam Clymer, major league asshole from the New York Times."
Cheney responded: "Oh yeah, that's true, big time."
Bush at a Labour rally in 2000
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