The attack on the campaign website comes amid a series of alternative media stories accusing Trump's rival Joe Biden of being involved in shady business arrangements in China spearheaded by his son Hunter. The attack appeared as a cryptocurrency scam, in which the perpetrators asked for payments transferred via Monero.
Mr Trump has also been very critical of other people for failing cyber-security measures in the past.
US President Donald Trump's official campaign website on Wednesday was hacked by cryptocurrency scammers as the unknown adversaries were shown over various parts of the page.
"This site was seized", said a message that popped up on donaldjtrump.com, which normally carries details of rallies and fundraising appeals.
The website's "About" page was briefly replaced by a message which stated: "the world has had enough of the fake-news spreaded (sic) daily by president donald j trump". "The hackers also posted what they said was their encryption key to Trumps" campaign site.
After an undisclosed deadline, the attackers promised to "compare the funds and execute the will of the world".
Trump 2020 Communications Director Tim Murtaugh later released a statement on the hack, saying that no sensitive data had been compromised.
The website was restored with the post removed after being taken offline temporarily.
"There was no exposure to sensitive date because no of it is actually stored on the site".