• Politics
  • Sony

State Department Insists North Korea Behind Sony Hack

3 minute read

The U.S. government remains convinced the North Korean government was behind last month’s massive Sony hack, despite outside reports alleging an employee of the company may have been involved.

“The United States government has concluded that the North Korean government is responsible for this attack,” State Department spokesman Jeff Rathke told reporters. “And we stand by that conclusion. “

The Federal Bureau of Investigation, which is leading the investigation in conjunction with other U.S. law enforcement and intelligence agencies, announced on December 19 that the rogue regime was responsible for the hack. But doubts have simmered among outside security experts, in part because the government has acknowledged withholding some of the evidence that led to the conclusion.

The FBI said it would not share its complete analysis of the evidence pointing to North Korea. “The need to protect sensitive sources and methods precludes us from sharing all of this information,” the bureau said. Publicly, the FBI has indicated the attack mimicked previous North Korean intrusions on South Korean systems, adding the “data-deletion malware” used in the attack was similar to other code experts have attributed to North Korean-allied hackers and attempted to “ping” internet protocol addresses linked to the country.

As a result, private cybersecurity experts have expressed continued doubts about the link to North Korea. “We can’t find any indication that North Korea either ordered, masterminded or funded this attack,” Kurt Stammberger, a vice president at Norse security in California, told the Los Angeles Times. Stammberger told the paper that he had briefed law-enforcement officials on the theory that the massive hack was an inside job.

But the inside-job theory has holes of its own. Outside analysts have only been given limited access to the malware and details of the Sony hack, and have failed to offer conclusive evidence that the U.S. government’s conclusions are wrong. “It’s not that it’s not possible. It’s just that it’s ambiguous,” Mark Rasch, a former federal cybercrimes prosecutor, says of the inside-job theory.

A disgruntled IT employee might have both the motive and technical expertise to burrow deep into Sony’s computer networks and extract some 100 terabytes of data, a process that cyberexperts say may have taken weeks or months. The nature of the hack—which spilled personal information about thousands of people and made public the private emails of Sony executives—seemed calibrated to embarrass the company. In their initial email to Sony executives and public statement, the hackers made no mention of “The Interview.” And wiping Sony’s computers, Rasch says, “is a tactic we frequently see in attacks by disgruntled insiders.”

Cybersecurity experts have said from the start that an insider could be involved. “We don’t discount the possibility of an insider,” Jaime Blasco, director of labs at the California-based security firm AlienVault, told TIME earlier this month.

In his end-of-year press conference, President Obama himself placed the blame on North Korea and promised that the U.S. government would respond, but would not discuss the specifics.

“They caused a lot of damage, and we will respond,” Obama said. “We will respond proportionally, and we’ll respond in a place and time and manner that we choose.”

The Most Controversial Films of All Time

James Franco;Seth Rogen
The Interview, 2014 The James Franco-Seth Rogen movie hadn’t even been released when it made its greatest impact. The Interview, about two Americans on a mission to kill Kim Jong-un, has sparked conversations about the tastefulness -- or not -- of depicting the killing of a foreign head of state. But it also is widely seen as having sparked the Sony hacking scandal, as the hackers, known as the Guardians of Peace, have urged Sony not to release the film. The ripple effect of the email hack saw off-color remarks about Angelina Jolie, Aaron Sorkin, and President Obama between Sony executives go public.Columbia
'The Birth Of A Nation'
Birth of a Nation, 1915 Birth of a Nation is held in high esteem as one of the most ambitious and innovative early films. It has also, in the near-century since its release, been derided for its use of blackface to depict black men as sexually rapacious and its characterization of the KKK as heroes. Is it possible to admire a film’s technical excellence while acknowledging that its content is deeply offensive? Many film scholars, who point to Birth of a Nation as part of the foundation of modern film, believe so.Hulton Archive/Getty Images
Charles Chaplin And Jack Oakie In 'The Great Dictator'
The Great Dictator, 1940 Charlie Chaplin’s lampooning of Hitler came before the U.S. was necessarily ready to hear it -- the country hadn’t yet entered World War II yet. The Great Dictator was controversial both for its advancement of anti-Hitler rhetoric and, at the same time, its turning Hitler into a figure of comedy. United Artists/Getty Images
Ray Milland & Jane Wyman In 'The Lost Weekend'
The Lost Weekend, 1945 Billy Wilder’s frank depiction of alcoholism, anchored with a tragic performance from Ray Milland, was startling for its time. Though it won several Oscars and the Palme d’Or, it had been, before its release, far from a sure thing. The success of The Lost Weekend allowed for fuller depictions of social issues on film, even though it could be uncomfortable.Paramount/Getty Images
Sue Lyon And James Mason In 'Lolita'
Lolita, 1962 This film was perhaps the first of director Stanley Kubrick’s to directly court controversy; the poster famously asked “How did they ever make a movie of Lolita?” and the question was very much worth asking. Lolita, the novel, is a strange and surreal look at an older man’s obsession with “nymphets,” or young girls; the film manages to carry across the same subject matter, though Lolita herself was aged up to avoid outright banning.MGM/Getty Images
Bonnie And Clyde
Bonnie and Clyde, 1967 Arthur Penn’s depiction of the short, glamorous lives of two bank robbers kicked off the New Hollywood era and scandalized audiences with its over-the-top violence. Bonnie and Clyde made its subjects look like, well, movie stars -- and then killed them in a brutal, seemingly endless hail of gunfire. Silver Screen Collection/Getty Images
"A Clockwork Orange"  Hawk Films, Ltd. December 19, 1971
A Clockwork Orange, 1971 Stanley Kubrick’s adaptation of Anthony Burgess’s dystopian drama features shocking sex and violence, to the degree that the film was restricted within the U.K. for decades. Its central notion, of behavioral therapy as a force for evil, has also provoked debate since the film’s release.Michael Ochs Archives/Getty Images
Dustin Hoffman And Meryl Streep In 'Kramer vs. Karmer'
Kramer vs. Kramer, 1979 This domestic drama, starring Dustin Hoffman and Meryl Streep as a couple whose marriage ends, was upfront about the challenges of raising children and the degree to which married life could be fundamentally unsatisfying.Columbia/Getty Images
Michael Douglas And Sharon Stone In 'Basic Instinct'
Basic Instinct, 1992 This film made Sharon Stone, for a brief time, one of the most compelling movie stars on Earth. Her role as the voracious novelist and serial killer Catherine Tramell outraged gay audiences who viewed her as a homophobic stereotype, and spooked some men who were unaccustomed to Stone’s forthright sexuality. Either way, no one could stop talking about Catherine, or about Stone.TriStar/Getty Images
Nicole Kidman In 'Eyes Wide Shut'
Eyes Wide Shut, 1999 Stanley Kubrick’s final film was perfectly in keeping with his careerlong interest in provocation. Eyes Wide Shut depicts a seamy New York underworld in which just about everyone is looking for sex, power, or both. Though the film’s graphic sexuality (including a scene at an orgy) was shocking, it was its depiction of the act of love as a transaction that really unsettled audiences.Warner Brothers/Getty Images
Requiem for a Dream, 2000 Darren Aronofsky’s breakthrough film, based on the work of Hubert Selby, Jr., was unabashed in its depiction of drugs’ effects. Each of the four principal characters suffers, brutally, for his or her addiction, culminating in one character’s psychotic break, another’s amputated arm, and a third’s descent into prostitution. The film’s miserabilist outlook, graphic sex, and body-horror imagery are as effective an antidrug campaign as exists. Artisan Entertainment
Fahrenheit 9/11, 2004 The 2004 presidential election was ugly to an unprecedented degree, with attacks on John Kerry’s service from the right’s Swift Boat Veterans for truth and this documentary-length Molotov cocktail tossed at George W. Bush from director Michael Moore. Moore, who’d previously been booed at the 2003 Oscars for an anti-Bush speech, mixed together insinuations about voter fraud in Florida and ties between the Bush and bin Laden families into an antiwar statement. In its sheer provocation and palpable anger, it was the perfect film for its polarized time; the fact that it was received very differently by audiences of different political persuasions seemed somehow apt.Lionsgate
MCDPAOF NW021
The Passion of the Christ, 2004 This film, depicting the torture and eventual death of Jesus, was one of the biggest hits of all time. But it hadn’t necessarily had a clear path to acclaim; pre-release, the film was pilloried for perceived anti-Semitism. As audiences flocked over the weeks preceding Easter, some criticized director Mel Gibson for an excessively violent and sadistic vision of Jesus’s death.Newmarket
MCDBORA FE048
Borat, 2006 Sacha Baron Cohen’s depiction of a Kazakh immigrant interacting with real people stateside showed America in a terrible light; it was hilarious, painful viewing. But for months after the film’s release, questions over just how fair Borat had been to its participants persisted. And Baron Cohen’s career continued to push boundaries of taste, with subsequent movies lampooning gay men (Bruno) and Sub-Saharan African heads of state (The Dictator).20th Century Fox

More Must-Reads from TIME

Write to Alex Altman at alex_altman@timemagazine.com