• Tech
  • Security

4 Things Every Single Person Can Learn From the Sony Hack

3 minute read

The massive cyberattack against Sony Pictures Entertainment that resulted in thousands of employees’ emails and personal data being posted online may have been the work of expert hackers with North Korean support—but that doesn’t mean we can’t all learn something from the incident.

Reporting around the Sony hack revealed the company and its employees did little to keep passwords and other sensitive data secure. Here are four things we can all learn about data security from the Sony hack.

Never open suspicious links

While some reports suggest the Sony hackers had inside help, it’s just as likely they accessed Sony’s systems after a hapless employee clicked a suspicious link in what’s called a “phishing” email. Those emails increasingly target specific employees with very personal messages that make it look like they’re from somebody you trust, but clicking the links they contain can result in malware hitting your computer, infecting your company’s network and leaving it vulnerable.

Learn more about phishing emails and how to detect them on this helpful Microsoft site.

Don’t email your passwords

Sony Pictures CEO Michael Lynton’s assistants emailed him unencrypted reminders of his passwords for email, banking and online shopping accounts, according to the Associated Press. How does the AP know that? Because those emails were leaked by the Sony hackers along with troves of other data, exposing Lynton to a serious personal security problem. All a hacker with Lynton’s emails had to do was search the cache for “password,” and voila, tons of access credentials.

If you have to communicate passwords with family members or coworkers, the safest solution is a secure password manager like 1Password or LastPass.

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

Encrypt your most sensitive data

Every business has sensitive files, like contracts or employees’ medical information. Encryption basically makes files look like a jumbled mess to anyone who doesn’t have the right decoding software, meaning it would have made it much harder for hackers and journalists to get anything useful from Sony’s documents.

Most people don’t go the extra mile and encrypt their private files, but the Sony hack shows we really ought to do that. Lifehacker has a good list of encryption tools here, though top tech companies have increasingly been making encryption the default, especially on mobile devices.

Make sure you’ve got an ace security team

This tip is more for corporate executives than rank-and-file employees, but it’s crucial that your company’s IT team is up to snuff. Sony Pictures CFO David C. Hendler complained about the company’s poor security policies as recently as October, according to emails leaked in the hack. The Sony hack would have caught many companies flat-footed, but having better security and IT practices might have helped Sony ward off the worst of it—and rebuilding after a hack is far harder and costlier than deflecting one to begin with.

More Must-Reads From TIME

Contact us at letters@time.com