Anonymous warns Trump: 'You are going to regret the next 4 years'

The hacker collective Anonymous has a reputation for delivering ominous messages, and in recent days, the group has begun targeting President-elect Donald Trump in a serious way

A series of messages posted on Twitter and include allegations that the group plans to reveal sordid information about Trump.

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"This isn't the 80's any longer, information doesn't vanish, it is all out there. You are going to regret the next 4 years," one message read.

In another, the group alleges Trump has "financial and personal ties with Russian mobsters, child traffickers, and money launderers."

So far the hacking group has provided no concrete evidence to back up those claims.

RELATED: See the newly-unveiled wax figures of Donald Trump

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Wax figures of Donald Trump

A technician combs the hair of a waxwork of U.S. President-elect Donald Trump at the Musee Grevin in Paris, France, January 19, 2017.

(REUTERS/Philippe Wojazer)

Madame Tussauds unveils a wax figure of President-Elect Donald J. Trump ahead of the inauguration on Friday at Madame Tussauds London on January 18, 2017 in London, England.

(Photo by Fred Duval/FilmMagic)

Members of the media and others attend the unveiling of the new wax figurine of President-elect Donald Trump at Madame Tussauds wax museum on January 18, 2017 in Washington, DC. Trump will be sworn in as President on January 20.

(Photo by Mario Tama/Getty Images)

Employees place the head on the body of the waxwork model of US President-elect Donald Trump ahead of its unveiling at the Grevin museum in Paris on January 19, 2017.

(CHRISTOPHE ARCHAMBAULT/AFP/Getty Images)

The new wax figurine of President-elect Donald Trump stands at Madame Tussauds wax museum on January 18, 2017 in Washington, DC. Trump will be sworn in as President on January 20.

(Photo by Mario Tama/Getty Images)

Members of the media and others attend the unveiling of the new wax figurine of President-elect Donald Trump at Madame Tussaud's wax museum on January 18, 2017 in Washington, DC. Trump will be sworn in as President on January 20.

(Photo by Mario Tama/Getty Images)

A museum worker puts a hat on of a life-sized wax statue of U.S. President-elect Donald Trump during an unveiling ceremony at Madrid's wax museum in Madrid, Spain, January 17, 2017.

(REUTERS/Susana Vera)

Madame Tussauds unveils a wax figure of President-Elect Donald J. Trump ahead of the inauguration on Friday at Madame Tussauds London on January 18, 2017 in London, England.

(Photo by Fred Duval/FilmMagic)

US President-elect Donald Trump wax figure during its presentation outside Madrid Wax Museum the event on January 17, 2017 in Madrid, Spain. 

(Photo by Oscar Gonzalez/NurPhoto via Getty Images)

Madame Tussauds unveils a wax figure of President-Elect Donald J. Trump ahead of the inauguration on Friday at Madame Tussauds London on January 18, 2017 in London, England.

(Photo by Fred Duval/FilmMagic)

A U.S. and a Spanish flag pins are seen on a life-sized wax statue of U.S. President-elect Donald Trump during an unveiling ceremony at Madrid's wax museum in Madrid, Spain, January 17, 2017.

(REUTERS/Susana Vera)

A sculptor carries the head of the waxwork model of US President-elect Donald Trump ahead of its unveiling at the Grevin museum in Paris on January 19, 2017.

(CHRISTOPHE ARCHAMBAULT/AFP/Getty Images)

Madame Tussauds unveils a wax figure of President-Elect Donald J. Trump ahead of the inauguration on Friday at Madame Tussauds London on January 18, 2017 in London, England.

(Photo by Fred Duval/FilmMagic)

US President-elect Donald Trump wax figure during its presentation outside Madrid Wax Museum the event on January 17, 2017 in Madrid, Spain.

 (Photo by Oscar Gonzalez/NurPhoto via Getty Images)

Madame Tussauds unveils a wax figure of President-Elect Donald J. Trump ahead of the inauguration on Friday at Madame Tussauds London on January 18, 2017 in London, England.

(Photo by Fred Duval/FilmMagic)

A technician works on a waxwork of U.S. President-elect Donald Trump (C), which is presented between waxworks of Russia's President Putin and Germany's Chancellor Merkel, at the Musee Grevin in Paris, France, January 19, 2017.

(REUTERS/Philippe Wojazer)

Madame Tussauds Washington, DC and attractions in New York, Orlando and London launched its new wax figure of Donald J. Trump at Madame Tussauds on January 18, 2017 in Washington, DC.

(Photo by Larry French/Getty Images for Madame Tussauds Washington DC)

US President-elect Donald Trump wax figure during its presentation outside Madrid Wax Museum the event on January 17, 2017 in Madrid, Spain. 

(Photo by Oscar Gonzalez/NurPhoto via Getty Images)

Madame Tussauds Washington, DC and attractions in New York, Orlando and London launched its new wax figure of Donald J. Trump at Madame Tussauds on January 18, 2017 in Washington, DC.

(Photo by Larry French/Getty Images for Madame Tussauds Washington DC)

Madame Tussauds unveils a wax figure of President-Elect Donald J. Trump ahead of the inauguration on Friday at Madame Tussauds London on January 18, 2017 in London, England.

(Photo by Fred Duval/FilmMagic)

A new wax figure of President-elect Donald Trump is unveiled at Madame Tussauds in Washington, U.S., January 18, 2017.

(REUTERS/James Lawler Duggan)

Gallery assistants pose, pretending to put the finishing touches to the hair and make-up of a waxwork of U.S. President-elect Donald Trump, during a media event at Madame Tussauds in London, Britain January 18, 2017.

(REUTERS/Neil Hall)

A woman takes a selfie with a life-sized wax statue of U.S. President-elect Donald Trump during an unveiling ceremony at Madrid's wax museum in Madrid, Spain, January 17, 2017.

(REUTERS/Susana Vera)

Technicians make adjustments to a waxwork of U.S. President-elect Donald Trump at the Musee Grevin in Paris, France, January 19, 2017.

(REUTERS/Philippe Wojazer)

A new wax figure of US President-elect Donald Trump is viewed a day after it was launched at Madame Tussauds in Washington,DC on January 19, 2017. With one day to go before he takes the oath of office as the 45th US president, Donald Trump arrives in Washington Thursday determined to transform US politics over the next four years.

(TIMOTHY A. CLARY/AFP/Getty Images)

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In a separate tweet, the group claimed the United States had "committed ritual suicide by electing Trump."

The posts shouldn't come as a surprise, as the group pledged to take Trump down not long before the election, but so far its attacks have not done much damage. The group leaked Trump's personal phone number in March 2016, but the information later was discovered to have been previously available.

Past targets of Anonymous include the Ku Klux Klan and ISIS.

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