How to Hack a U.S.A. 'presidential' Election

Returning the party to power on that night in July 2012, Peña Nieto vowed to tame drug violence, fight corruption, and open a more transparent era in Mexican politics.

Two thousand miles away, in an apartment in Bogotá’s upscale Chicó Navarra neighborhood, Andrés Sepúlveda sat before six computer screens. Sepúlveda is Colombian, bricklike, with a shaved head, goatee and a tattoo of a QR code containing an encryption key on the back of his head. On his nape are the words “” and “” stacked atop each other, dark riffs on coding. He was watching a live feed of Peña Nieto’s victory party, waiting for an official declaration of the results.

When Peña Nieto won, Sepúlveda began destroying evidence. He drilled holes in flash drives, hard drives, and cell phones, fried their circuits in a microwave, then broke them to shards with a hammer. He shredded documents and flushed them down the toilet and erased servers in Russia and Ukraine rented anonymously with Bitcoins. He was dismantling what he says was a secret history of one of the dirtiest Latin American campaigns in recent memory.

For eight years, Sepúlveda, now 31, says he traveled the continent rigging major political campaigns. With a budget of $600,000, the Peña Nieto job was by far his most complex. He led a team of hackers that stole campaign strategies, manipulated social media to create false waves of enthusiasm and derision, and installed spyware in opposition offices, all to help Peña Nieto, a right-of-center candidate, eke out a victory. 

On that July night, he cracked bottle after bottle of Colón Negra beer in celebration. As usual on election night, he was alone.

Sepúlveda’s career began in 2005, and his first jobs were small—mostly defacing campaign websites and breaking into opponents’ donor databases. Within a few years he was assembling teams that spied, stole, and smeared on behalf of presidential campaigns across Latin America. He wasn’t cheap, but his services were extensive. For $12,000 a month, a customer hired a crew that could hack smartphones, spoof and clone Web pages, and send mass e-mails and texts. The premium package, at $20,000 a month, also included a full range of digital interception, attack, decryption, and defense. The jobs were carefully laundered through layers of middlemen and consultants. Sepúlveda says many of the candidates he helped might not even have known about his role; he says he met only a few.

His teams worked on presidential elections in Nicaragua, Panama, Honduras, El Salvador, Colombia, Mexico, Costa Rica, Guatemala, and Venezuela. Campaigns mentioned in this story were contacted through former and current spokespeople; none but Mexico’s PRI and the campaign of Guatemala’s National Advancement Party would comment.

As a child, he witnessed the violence of Colombia’s Marxist guerrillas. As an adult, he allied with a right wing emerging across Latin America. He believed his hacking was no more diabolical than the tactics of those he opposed, such as Hugo Chávez and Daniel Ortega.

Many of Sepúlveda’s efforts were unsuccessful, but he has enough wins that he might be able to claim as much influence over the political direction of modern Latin America as anyone in the 21st century. “My job was to do actions of dirty war and psychological operations, black propaganda, rumors—the whole dark side of politics that nobody knows exists but everyone can see,” he says in Spanish, while sitting at a small plastic table in an outdoor courtyard deep within the heavily fortified offices of Colombia’s attorney general’s office. He’s serving 10 years in prison for charges including use of malicious software, conspiracy to commit crime, violation of personal data and espionage related to hacking during Colombia’s 2014 presidential election.

He has agreed to tell his full story for the first time, hoping to convince the public that he’s rehabilitated and gather support for a reduced sentence.  Usually, he says, he was on the payroll of Juan José Rendón, a Miami based political consultant who’s been called the Karl Rove of Latin America.

Rendón denies using Sepúlveda for anything illegal, and categorically disputes the account Sepúlveda gave Bloomberg Businessweek of their relationship, but admits knowing him and using him to do website design. “If I talked to him maybe once or twice, it was in a group session about that, about the Web,” he says. “I don’t do illegal stuff at all. There is negative campaigning. They don’t like it—OK. But if it’s legal, I’m gonna do it. I’m not a saint, but I’m not a criminal.”

While Sepúlveda’s policy was to destroy all data at the completion of a job, he left some documents with members of his hacking teams and other trusted third parties as a secret “insurance policy.”

Sepúlveda provided Bloomberg Businessweek with what he says are e-mails showing conversations between him, Rendón, and Rendón’s consulting firm concerning hacking and the progress of campaign-related cyber attacks. Rendón says the e-mails are fake. An analysis by an independent computer security firm said a sample of the e-mails they examined appeared authentic.

Some of Sepúlveda’s descriptions of his actions match published accounts of events during various election campaigns, but other details couldn’t be independently verified. One person working on the campaign in Mexico, who asked not to be identified out of fear for his safety, substantially confirmed Sepúlveda’s accounts of his and Rendón’s roles in that election.

Sepúlveda says he was offered several political jobs in Spain, which he says he turned down because he was too busy.

On the question of whether the U.S. presidential campaign is being tampered with, he is unequivocal. “I’m 100 percent sure it is,” he says.