Sony Suffers Cyber Attack, Bomb Threat Sony's PlayStation network was shut down for several hours on Sunday while a flight carrying an executive at the company was diverted due to a bomb threat.

Opinions expressed by Entrepreneur contributors are their own.

On Sunday, Sony's PlayStation network was shut down for several hours after it was overwhelmed with artificially high traffic, i.e. it was the target of a distributed denial of service (DDoS) attack.

The network is now back online, and according to a Sony blog post, there is no evidence that users' personal information was compromised.

Related: UPS Stores In 24 States Hacked, Private Customer Data Possibly Exposed

Still, it was a deeply unsettling weekend for the company. On Sunday, a group claiming responsibility for the cyber attack via the Twitter handle @LizardSquad also sent out a tweet suggesting there was a bomb threat on an American Airlines flight from Dallas-Fort Worth to San Diego carrying Sony Online Entertainment President John Smedley. "Awesome. Flight diverted to Phoenix for security reasons," Smedley tweeted, later elaborating:

A Sony spokesperson told the BBC that the FBI was investigating the bomb scare.

Related: Meetup Still Struggling 6 Days After Hack Attack

Lizard Squad said in a tweet that it acted in order to pressure Sony to spend more money on its network: "Sony, yet another large company, but they aren't spending the waves of cash they obtain on their customers' PSN (PlayStation Network) service. End the greed."

Sony wasn't the only gaming service targeted over the weekend; Blizzard Entertainment (developers of World of Warcraft) and Riot Games (developer of League of Legends) also reported disruptions. Lizard Squad claimed responsibility for these attacks, too.

Sony's PlayStation network was the target of a major cyber attack back in 2011 -- the network was down for more than a month after hackers infiltrated the service, not just shutting it down but also compromising credit card information and other personal data from over 70 million user accounts.

Related: No Apologies: On Hack, Snapchat Founder Says 'We Thought We Had Done Enough'

Laura Entis is a reporter for Fortune.com's Venture section.

Want to be an Entrepreneur Leadership Network contributor? Apply now to join.

Growing a Business

Bad Reviews Can Destroy a Small Business. But If You Get One, Here's How to Bounce Back.

A one-star review can hurt your ego — and your business. But it's possible to prevent (and remedy!) this scary scenario.

Marketing

I've Sold More Than $18,000,000 in Products and Services Using This "Big" Marketing Strategy

This one single thing can be the difference between a home-run marketing campaign and one that flops.

Business Ideas

70 Small Business Ideas to Start in 2025

We put together a list of the best, most profitable small business ideas for entrepreneurs to pursue in 2025.

Business News

Starbucks Is Limiting Mobile Orders to Reclaim the Coffeehouse's 'Connection' With Customers

The coffee chain has made a spate of recent changes to its stores.